BIS CRS registration is mandatory for all microwave ovens sold, manufactured for sale, or imported into India. Microwave Ovens were added to the Compulsory Registration Scheme on 3 July 2013, under IS 302 (Part 2): Section 25:2014 — the Indian adoption of IEC 60335-2-25, governing safety of household and similar electric microwave ovens. The most distinctive test for microwave ovens is the Microwave Radiation Leakage Test — the maximum permitted leakage is 5 mW/cm² at 50 mm from the oven surface. All oven types are covered: solo, grill, convection combination, over-the-range, and commercial. BIS issues a licence number valid for 2 years, requiring renewal. Foreign manufacturers must appoint an Authorised Indian Representative (AIR). Manufacturing, importing, or selling microwave ovens without valid BIS registration is an offence under the BIS Act, 2016.
Microwave ovens are among the most widely used electrical appliances in Indian homes, restaurants, and commercial kitchens — and among the most tightly regulated. Unlike most household appliances, microwave ovens present a safety risk that extends beyond the conventional electrical hazards of shock, fire, and overheating. They generate microwave-frequency electromagnetic radiation to cook food, and if that radiation is not properly contained by the door seals, cavity design, and interlock systems, it can cause harm to users. That radiation containment requirement is what makes IS 302-2-25 uniquely demanding — and why BIS CRS registration for microwave ovens involves a suite of tests that goes beyond standard electrical appliance certification.
For manufacturers and importers, BIS CRS registration under IS 302 (Part 2): Section 25:2014 is the legal prerequisite for market access in India. This guide provides the complete picture: the standard and what it covers, all oven types within scope, every key test with the reasoning behind it, the complete document set, and the step-by-step path from product to BIS licence — for both domestic and foreign manufacturers.
📑 Quick Navigation
- Why BIS CRS Registration Is Mandatory for Microwave Ovens
- Applicable Standard: IS 302-2-25:2014 (IEC 60335-2-25)
- Microwave Oven Types Covered Under BIS CRS
- 4 Pillars of BIS Registration
- The Radiation Leakage Test — What Makes Microwave Ovens Unique
- 10 Key Safety Tests Under IS 302-2-25:2014
- Domestic vs Foreign Manufacturer: Registration Process Compared
- Document Checklist for BIS Registration
- 7-Step BIS Registration Process
- Consequences of Non-Compliance
- How Rego Services Supports Your Registration
- Frequently Asked Questions
Why BIS CRS Registration Is Mandatory for Microwave Ovens
India added microwave ovens to the Compulsory Registration Scheme on 3 July 2013 — as part of a broader MeitY notification covering a range of household electrical appliances with elevated safety risk profiles. The mandatory registration requirement reflects the dual-hazard nature of microwave ovens: they carry conventional electrical safety risks shared with all mains-powered appliances, but they also generate non-ionising electromagnetic radiation at microwave frequencies, the containment of which requires specific design provisions and dedicated testing that does not apply to any other household appliance category.
IS 302-2-25:2014 mandates the Microwave Radiation Leakage Test — unique to this product category — verifying that the oven's door seals, cavity design, and interlock systems contain electromagnetic radiation within the safe 5 mW/cm² limit. This is the defining safety test that distinguishes microwave oven registration from all other household appliance CRS categories.
IS 302-2-25 requires two independent door interlock systems that immediately stop microwave energy generation the moment the door is opened or the latch is released. The standard also requires a monitoring system that renders the oven inoperable if either interlock fails — making interlock design reliability a critical safety and compliance dimension unique to this product.
No microwave oven can legally be manufactured for sale, imported, or distributed in India without a valid BIS registration number. Customs clearance is contingent on registration, and major retail chains and e-commerce platforms require it as a mandatory listing condition — making registration both a legal obligation and a commercial prerequisite.
India's microwave oven market encompasses tens of millions of units — from premium imported convection models to entry-level domestic solo ovens. Mandatory BIS registration ensures that every unit reaching consumers — regardless of price point, brand origin, or distribution channel — meets the minimum safety standards established by IS 302-2-25:2014.
Applicable Standard: IS 302-2-25:2014 (IEC 60335-2-25)
IS 302 (Part 2): Section 25:2014 — titled Safety of Household and Similar Electrical Appliances: Part 2 Particular Requirements: Section 25 Microwave Ovens — is the Indian Standard governing the safety of household and similar electric microwave ovens. It is the Indian national adoption of IEC 60335-2-25, the internationally recognised safety standard for microwave ovens published by the International Electrotechnical Commission.
Covers insulation requirements, earthing provisions, leakage current limits, and electrical strength — the foundational safety parameters that apply to all mains-powered household appliances, now applied within the specific context of microwave oven design and construction.
Specifies the maximum permitted microwave radiation leakage from the oven (5 mW/cm² at 50 mm from the surface), the door interlock requirements, the door monitoring system, and the cavity and door sealing design provisions that together ensure the microwave energy stays inside the oven where it belongs.
Establishes maximum temperature limits for accessible surfaces, internal components, and the cavity during normal operation and under fault conditions — ensuring that thermal energy generated by the oven's cooking process does not create surface contact burns or fire risks from overheated components.
Covers mechanical integrity of the oven structure, door hinges, latches, and seals — components whose mechanical reliability is directly linked to the oven's radiation containment performance — along with all required marking and documentation obligations under the Indian Standard.
Microwave Oven Types Covered Under BIS CRS
IS 302-2-25:2014 covers household and similar electric microwave ovens across all operating configurations. Every type listed below requires BIS CRS registration before it can be manufactured for sale, imported, or distributed in India.
Microwave energy only. Most common type in Indian households — used for reheating, defrosting, and simple cooking. The baseline IS 302-2-25 compliance configuration.
Microwave + heating element grill. Enables browning and crisping in addition to microwave cooking. Additional thermal safety considerations from the grill element.
Microwave + grill + convection fan. Full baking, roasting, and reheating capability. Most complex IS 302-2-25 compliance profile — tested across all operating mode combinations.
Wall-mounted above cooking range with integrated ventilation. Installation-specific mechanical and thermal safety requirements in addition to standard IS 302-2-25 compliance.
High-wattage units for restaurants, catering, and food service operations. IS 302-2-25:2014 covers commercial applications — BIS registration mandatory for commercial units entering the Indian foodservice market.
4 Pillars of BIS CRS Registration for Microwave Ovens
BIS CRS registration for microwave ovens — like all CRS categories — is anchored to four foundational parameters. All four must be clearly defined, correctly documented, and fully consistent across the entire application.
Only the actual manufacturer can hold the licence. Importers and traders apply via the manufacturer's AIR — they cannot hold BIS licences independently.
Each manufacturing plant address requires its own BIS licence number. The same microwave model from two different factories needs two separate registrations.
Microwave Ovens under IS 302-2-25. Multiple models from the same design family (same magnetron, cavity, and interlock design) can be grouped under one licence.
Each brand name under which the microwave oven is sold in India requires a separate BIS registration, even if manufactured in the same factory.
The Radiation Leakage Test — What Makes Microwave Ovens Unique
The Microwave Radiation Leakage Test is the single most distinctive element of IS 302-2-25:2014 compliance — it is a test that does not exist for any other household electrical appliance category covered by BIS CRS. Understanding what it measures, why it matters, and the design features it verifies is essential context for any manufacturer or importer preparing microwave ovens for the Indian market.
Microwave ovens generate electromagnetic radiation at 2.45 GHz — the frequency at which water molecules absorb energy and convert it to heat. This radiation must be completely contained within the cooking cavity during operation. If radiation leaks through gaps in the door seal, around hinges, or through ventilation openings, it can cause heating of biological tissue (similar to the way it cooks food) in users standing near the oven. IS 302-2-25:2014 specifies that microwave leakage must not exceed 5 mW/cm² at a distance of 50 mm from the oven surface — a limit set well below the level known to cause biological harm. The test is performed by scanning all surfaces and seams of the operating oven with a calibrated radiation probe, with the oven loaded and operating at full power.
IS 302-2-25 requires that every microwave oven have two independent interlock systems — a primary and a secondary — that each independently stop microwave energy generation the moment the door is opened or the latch is released. Either interlock alone is sufficient to stop radiation emission; both operating together provide redundant protection against interlock failure.
In addition to the two interlocks, IS 302-2-25 requires a monitoring system that renders the oven permanently inoperable if either interlock fails to perform its required function. This failsafe ensures that a defective interlock — which might otherwise allow radiation emission with the door open — causes the oven to cease operation rather than continue in a hazardous state.
The door seal design — including the choke cavity or gasket system around the door perimeter — is the primary barrier against microwave leakage during normal closed-door operation. IS 302-2-25 tests verify that the door seal maintains the required leakage level not only when new but also after the mechanical stressing associated with normal repeated use.
The radiation leakage measurement must be conducted at a BIS-recognised laboratory using calibrated microwave radiation measurement equipment, with the oven loaded to the specified test load (typically a water load) and operating at maximum rated power. The test data from this measurement is one of the most scrutinised elements in BIS technical review of microwave oven applications.
10 Key Safety Tests Under IS 302-2-25:2014
IS 302-2-25:2014 testing at a BIS-recognised laboratory covers the following comprehensive set of safety and performance parameters. The radiation-related tests (Tests 01 and 02) are unique to microwave ovens; the remaining tests reflect the standard safety requirements applied to all household electrical appliances within the IS 302 framework.
Measures microwave radiation emission from all surfaces, seams, and apertures of the operating oven at 50 mm distance, verifying it does not exceed 5 mW/cm². Conducted with the oven at maximum rated power and specified water load. This is the defining IS 302-2-25 test — the one that most directly addresses the unique hazard of microwave ovens and the one BIS technical reviewers examine most closely.
Verifies that both the primary and secondary door interlock systems independently and reliably stop microwave energy generation when the door is opened, and that the monitoring system correctly renders the oven inoperable if an interlock fails. Tests the interlocks under normal operation, repeated operation cycles, and simulated failure conditions — the interlock system being the last line of defence against direct radiation exposure during oven use.
Applies high test voltage between live conductors and accessible surfaces to verify that the oven's insulation will not break down under mains overvoltage conditions — the foundational electrical safety test confirming that users cannot receive a lethal shock through normal contact with the oven's accessible surfaces.
Measures the current that would flow through a person touching the oven's accessible metal surfaces, verifying it remains below the safe threshold under both normal and fault conditions — particularly important for metal-bodied microwave ovens and those with metallic control panels and door handles.
Measures temperature rise across the oven's accessible exterior surfaces, internal components, and controls under continuous rated operation — verifying that no surface exceeds the temperature limits that would create a fire risk or user contact burns during normal extended cooking use, including the specific thermal conditions created by convection and grill modes in combination ovens.
Tests the oven's safety response to abnormal operating conditions — blocked ventilation, extended run time with abnormal loads, and simulated control circuit failures — verifying that thermal protection devices activate correctly and that the oven does not present fire or radiation hazards when operated outside its normal design envelope.
Tests the mechanical robustness of the oven's door, hinges, latches, and sealing system under the mechanical stresses of normal repeated use — as the door's structural integrity is directly linked to the radiation leakage performance that deteriorates when door components wear, misalign, or fail under cumulative mechanical stress.
Verifies that the oven's actual power consumption and current draw at rated operating conditions match the values declared on the rating label within the tolerances specified in IS 302-2-25 — a marking and performance accuracy requirement that ensures consumers and installers receive accurate electrical loading data for safe installation and circuit sizing.
Verifies the continuity and adequacy of the protective earth connection in the oven, confirming that fault currents are safely diverted to earth and that the earth path can carry the full fault current without failure — a critical safety feature for an appliance whose metal enclosure is directly accessible to users and regularly touched during cooking operations.
Verifies that all required markings — rated voltage, rated power output, cavity capacity, operating frequency, BIS registration number, manufacturer identity, and all required safety warning labels — are correctly, durably, and legibly applied to the oven and its packaging, and that the user manual includes all required safety instructions for microwave oven use.
Domestic vs Foreign Manufacturer: Registration Process Compared
The core BIS CRS registration requirements — IS 302-2-25:2014 laboratory testing, document submission, and BIS portal application — are the same for both Indian domestic manufacturers and foreign manufacturers. The key procedural difference is the Authorised Indian Representative (AIR) requirement that applies exclusively to foreign manufacturers.
- Apply directly on BIS portal (crsbis.in)
- No AIR requirement — manufacturer applies directly
- Factory address is the Indian manufacturing site
- Manufacturing licence issued by Indian authority
- BIS may conduct factory inspection directly
- ISO 9001 certificate from Indian facility
- All documentation in English or with certified translation
- Registration issued to Indian manufacturer entity
- Must appoint an AIR in India before application
- AIR manages BIS application and liaison in India
- Factory address is the overseas manufacturing site
- Manufacturing licence issued by foreign authority
- BIS factory inspection at overseas premises (or waived with AIR warranty)
- ISO 9001 certificate from overseas facility
- All documents in English or with certified translation
- Registration issued in name of foreign manufacturer with AIR details on record
BIS CRS Registration for LED LCD Smart TV 32 Inches and Above India 2026
If your product portfolio includes both microwave ovens and televisions — common for multinational home appliance brands entering India — see our companion guide to BIS CRS Registration for LED, LCD, and Smart TVs covering IS 616:2017, document requirements, model grouping strategy, and Smart TV WPC ETA dual-certification requirements.
Document Checklist for BIS CRS Registration of Microwave Ovens
The document set for BIS CRS registration of microwave ovens is notably more technically demanding than most household appliance CRS categories — because of the additional magnetron, door interlock, and radiation containment documentation requirements specific to IS 302-2-25:2014. Every document must be current, accurate, and fully consistent across the entire set before BIS portal submission.
- Completed BIS online application form — The CRS registration application on the BIS portal, with accurate and fully consistent product, brand, factory, and applicant details. Any inconsistency between the application form and supporting documents is the most common source of BIS scrutiny queries and delays.
- CDF (Construction Data Form) / CCL (Critical Components List) — The BIS-prescribed technical declaration documents covering the microwave oven's circuit topology, magnetron specifications, cavity design, door interlock system design, critical component details, and power supply architecture — in exact BIS-prescribed format and fully consistent with the laboratory test report.
- BIS-recognised laboratory test report under IS 302-2-25:2014 — The complete test report from a BIS-approved laboratory confirming IS 302-2-25:2014 compliance, including the critical microwave radiation leakage test data showing measured leakage levels at all test points, and the door interlock safety test results.
- Magnetron specification sheet — Technical specifications of the magnetron used in the microwave oven — manufacturer, model number, rated frequency (2.45 GHz), power output, and anode current — as the magnetron is the most critical component from a radiation safety perspective and a primary focus of BIS technical review.
- Door interlock design description — A written description or diagram of the primary and secondary door interlock system design, confirming both interlock types, their operating principles, their independence, and the monitoring system that detects interlock failure — required to support BIS's technical review of the radiation safety provisions.
- Manufacturing unit business licence — Official documentation confirming the legal registration and operating status of the microwave oven manufacturing facility.
- Business licence scope documentation — Confirming that microwave oven manufacture falls within the scope of the manufacturing facility's licensed business activity.
- ISO 9001 certificate — Current ISO quality management system certificate for the manufacturing facility, demonstrating the quality framework underpinning consistent microwave oven production and the radiation safety quality controls in the manufacturing process.
- Rating label and marking artwork — The artwork for the microwave oven's rating label and all product markings, confirming that rated input/output, cavity capacity, operating frequency (2.45 GHz), BIS registration number placement, and all required warning labels are correctly included per IS 302-2-25 and BIS marking requirements.
- Product datasheet and technical specification sheet — Full technical specifications of the microwave oven — rated power input and output, cavity volume, operating modes (microwave/grill/convection), operating frequency, turn table specifications, and safety features listing.
- User manual / instruction booklet — The end-user manual covering safe installation, operation, cleaning, and maintenance — including the mandatory radiation safety precautions that IS 302-2-25 requires to be included in the user documentation of every microwave oven.
- Block diagram and circuit description — Electrical block diagram of the microwave oven and a written description of the circuit — including the power supply, magnetron drive circuit, control board, and interlock circuit topology — for BIS technical reviewer reference.
- Trademark registration certificate — Copy of the registered trademark certificate for the brand name under which the microwave oven is marketed in India.
- Trademark authorisation letter — A letter from the trademark owner authorising the manufacturer or applicant to use the registered brand name on microwave oven products sold in India.
- Authorisation letter from manufacturer — A letter from the microwave oven manufacturer formally authorising the applicant or regulatory representative to manage the BIS registration process on its behalf.
- AIR appointment letter (foreign manufacturers) — The formal letter appointing the Authorised Indian Representative as the BIS regulatory liaison, covering their scope of authority for registration and ongoing compliance management.
- AIR company registration proof and photo ID — Documentation confirming the legal entity status of the Indian AIR and photo identification for the authorised signatory named in the BIS application.
- BIS-prescribed undertakings and declarations — The standardised declarations prescribed by BIS for CRS applications, confirming the accuracy of submitted information and the applicant's ongoing compliance obligations including market surveillance obligations.
7-Step BIS CRS Registration Process for Microwave Ovens
BIS CRS registration for microwave ovens follows a seven-step process that is identical in structure for both domestic and foreign manufacturers, with the key difference that foreign manufacturers must complete an AIR appointment before Step 1. The typical end-to-end timeline is 6 to 10 weeks — with IS 302-2-25:2014 laboratory testing (including the radiation leakage programme) taking 3 to 5 weeks, BIS portal submission and preparation taking 1 to 2 weeks, and BIS scrutiny adding 2 to 3 weeks.
Verify that your product is a household or similar electric microwave oven under IS 302-2-25:2014 and define the lead model and all variant models to be covered under the registration. Model grouping strategy — based on shared magnetron, interlock design, and cavity configuration — should be determined before testing begins to ensure BIS will accept the proposed grouping and all intended models are correctly covered under a single licence.
Foreign manufacturers must formally appoint an AIR before submitting the BIS registration application. The AIR manages the complete registration process in India — portal submission, laboratory coordination, BIS query response, and compliance monitoring — on the manufacturer's behalf. The AIR appointment must be documented in the prescribed format and submitted as part of the application.
Submit representative microwave oven samples to a BIS-approved laboratory for full safety testing under IS 302-2-25:2014 — including the critical microwave radiation leakage test and door interlock safety verification. Confirm laboratory BIS recognition status and testing slot availability before finalising your registration schedule. The radiation leakage test programme in particular requires calibrated equipment and experienced test personnel — not all labs are equally equipped for this measurement.
Receive the complete test report from the BIS-recognised laboratory, covering all IS 302-2-25:2014 safety parameters — with particular attention to the radiation leakage test data showing measured leakage levels at all test points and their compliance with the 5 mW/cm² limit. Review the report for completeness, accuracy, and consistency with the product details declared in the CDF and CCL before incorporating it into the BIS application.
Prepare the CDF/CCL in BIS-prescribed format — including the magnetron specification, door interlock design description, and radiation safety provisions — and compile all required supporting documents. Verify full consistency across every document in the set: the application form, CDF/CCL, test report, label artwork, magnetron datasheet, facility certificates, trademark records, and AIR appointment documentation. Cross-document inconsistencies are the most common source of BIS scrutiny delays for microwave oven registrations.
Submit the complete BIS CRS registration application on the BIS portal with all supporting documents attached and pay the applicable government application fee and marking fees. Retain payment receipts as part of the application record and confirm that portal status reflects receipt of the complete submission before proceeding.
BIS technical officers review the application and may raise queries — particularly on radiation leakage test data, magnetron specifications, and door interlock design. Respond promptly and accurately to all BIS queries. Upon successful scrutiny, BIS issues the CRS licence for the microwave oven, authorising its manufacture, import, sale, and distribution in India. The licence is valid for 2 years and must be renewed before expiry.
Consequences of Non-Compliance
Manufacturing, importing, or distributing microwave ovens in India without valid BIS CRS registration is an offence under the BIS Act, 2016. Enforcement is active and extends across import, wholesale, retail, and e-commerce channels.
Microwave oven consignments arriving without valid BIS registration numbers are subject to customs detention and import clearance refusal. Held shipments incur demurrage and storage costs, disrupt supply to distribution partners, and cannot be resolved without obtaining valid registration — which cannot be retroactively applied to already-detained goods.
BIS and enforcement authorities have statutory power to seize non-compliant microwave ovens at any point in the supply chain — at the border, in warehouses, at distributors, or in retail stores. Seized inventory is a direct financial loss, and market seizure events damage relationships with distribution and retail partners that extend beyond the immediate non-compliance episode.
The BIS Act, 2016 prescribes monetary penalties for manufacturing, importing, or selling CRS-notified products without valid registration. Penalties escalate for repeat and wilful violations and can be assessed against both the corporate entity and the responsible individual officers within it — creating personal financial exposure alongside corporate liability.
Major Indian e-commerce platforms and large retail chains require valid BIS registration as a mandatory condition for microwave oven product listings and shelf placement. Non-compliant products are delisted on detection, removing revenue from the most important consumer sales channels and triggering compliance reviews that disrupt the entire product range, not just the non-compliant model.
How Rego Services Supports Your BIS CRS Registration for Microwave Ovens
BIS CRS registration for microwave ovens is more technically demanding than most household appliance CRS categories — because of the radiation leakage test programme, the magnetron and door interlock documentation requirements, and the additional BIS scrutiny that these unique safety provisions attract. Rego Services Private Limited manages the complete registration journey for microwave oven manufacturers and importers, ensuring every step — from pre-testing preparation through to licence issuance — is executed correctly the first time.
- Product scope and standard confirmation — We confirm that your product falls correctly within the IS 302-2-25:2014 scope and that the appropriate test programme is applied — preventing the cost of testing under incorrect parameters or an incorrect standard edition.
- Pre-testing technical review — We review your microwave oven's CDF, magnetron specifications, door interlock design, cavity configuration, and label artwork against IS 302-2-25:2014 requirements before sample submission — identifying compliance gaps that could cause test failures and preventing the retesting costs and timeline delays they create.
- CDF and CCL preparation with radiation safety documentation — We prepare the CDF and CCL in exact BIS-prescribed format — including the magnetron specification, door interlock design description, and radiation safety provisions — the documents most subject to BIS scrutiny queries in microwave oven applications.
- BIS-recognised laboratory coordination — We identify and coordinate with BIS-approved laboratories qualified for IS 302-2-25:2014 testing — including those with verified calibrated microwave radiation leakage measurement equipment — manage sample submission, and track testing progress to keep the registration timeline on schedule.
- Model grouping strategy — We advise on the optimal grouping of multiple microwave oven models (different capacities, different configurations of the same platform) under a single BIS licence, minimising testing cost and registration time across a product family while ensuring all variants are correctly covered.
- Documentation preparation and consistency review — We compile and review the complete document set, ensuring full cross-document consistency between the application form, CDF/CCL, test report, magnetron datasheet, label artwork, facility certificates, and trademark records — before portal submission.
- BIS portal submission and management — We submit the complete CRS application on the BIS portal and manage all portal interactions, document uploads, fee payments, and status tracking throughout the scrutiny and approval process.
- BIS scrutiny query response — We respond to all BIS technical and documentary queries — including those on radiation leakage test data, magnetron specifications, and door interlock design details — promptly and accurately, drawing on our IS 302-2-25 registration experience to resolve queries in the fewest possible rounds.
- AIR services for foreign manufacturers — We provide or coordinate AIR appointment and services for microwave oven manufacturers based outside India, satisfying BIS's requirement for a designated India-based regulatory liaison throughout registration and ongoing compliance.
- Registration renewal management — We maintain compliance calendars for your BIS licences and manage the renewal process before the 2-year validity expires, ensuring continuous and uninterrupted legal market access for your microwave oven products in India.
Frequently Asked Questions
Does a convection microwave oven need separate BIS registration from a solo microwave oven?
A convection microwave oven does not need a completely separate BIS registration — it falls under the same IS 302-2-25:2014 CRS category as solo and grill microwave ovens. However, the convection model's additional operating modes (grill-only, convection-only, combination) mean it must be tested across all operating configurations, which may require a separate test report from the lead solo model. Whether the convection model can be covered as a variant under the same licence as a solo model — or requires a separate application — depends on how similar the underlying circuit architecture and magnetron design are, and should be confirmed with a BIS consultant before testing begins.
Can the Indian importer of a foreign microwave oven brand hold the BIS licence?
No. The BIS CRS licence for microwave ovens is always issued in the name of the manufacturer, not the importer. An Indian importer cannot hold a BIS licence in their own name unless they are also the actual manufacturer of the product. The Indian importer can, however, be appointed as the Authorised Indian Representative (AIR) for the foreign manufacturer — in which case the importer manages the BIS registration process in India on the manufacturer's behalf, and the licence is issued in the manufacturer's name with the importer's details as AIR on record with BIS.
What is the significance of the 2.45 GHz frequency on the microwave oven's rating label?
The 2.45 GHz operating frequency is the microwave frequency at which domestic microwave ovens worldwide operate, established by international spectrum allocation. It is required to be displayed on the rating label of every BIS-registered microwave oven — both as a technical specification for the user and as confirmation that the oven operates within the frequency band authorised for industrial, scientific, and medical (ISM) use in India. The radiation leakage test under IS 302-2-25:2014 is conducted at this frequency, as the containment effectiveness of the door seal and cavity design is frequency-dependent.
Is the BIS CRS licence for microwave ovens valid indefinitely?
No. BIS CRS licences for microwave ovens are valid for 2 years and must be renewed before expiry to maintain continuous legal market access. BIS also conducts market surveillance between renewal cycles to verify continued compliance with the registered product specifications. Maintaining a compliance calendar and initiating the renewal process at least 2 to 3 months before expiry — accounting for laboratory testing, documentation preparation, and BIS review time — is essential to avoid a registration gap that would create an import and sales compliance problem.
✓ Key Takeaways
- BIS CRS registration is mandatory for all microwave ovens in India — notified on 3 July 2013 under IS 302 (Part 2): Section 25:2014, the Indian adoption of IEC 60335-2-25
- All microwave oven types are covered: solo, grill, convection combination, over-the-range, and commercial — regardless of rated wattage or brand origin
- The Microwave Radiation Leakage Test is unique to this product category — maximum permitted leakage is 5 mW/cm² at 50 mm from the oven surface, tested at full rated power with calibrated equipment
- IS 302-2-25 requires two independent door interlocks (primary and secondary) plus a monitoring system that renders the oven inoperable if either interlock fails
- Registration is per manufacturer × brand × factory — each brand and each manufacturing plant requires a separate BIS licence number
- Multiple models from the same design family (same magnetron, cavity, interlock design) can be grouped under one BIS licence using the lead model plus variant strategy
- Foreign manufacturers must appoint an AIR before applying — the licence is always issued in the manufacturer's name, not the importer's
- The CDF, CCL, magnetron spec sheet, and door interlock design description are the most technically sensitive documents in a microwave oven BIS application — prepare them carefully
- BIS licences are valid for 2 years and must be renewed before expiry to maintain continuous market access
- Non-compliance carries customs detention, seizure, monetary penalties, e-commerce delisting, and potential imprisonment — with active BIS market surveillance including online marketplace monitoring
Your Next Step
BIS CRS registration for microwave ovens under IS 302-2-25:2014 is more technically demanding than most household appliance registrations — the radiation leakage test programme, the magnetron and door interlock documentation requirements, and the BIS scrutiny those provisions attract mean that quality of preparation directly determines whether registration takes 6 weeks or 14 weeks. With the right regulatory partner managing every step, the path to your BIS licence is clear, structured, and efficient.
Rego Services' regulatory team brings the specific IS 302-2-25 expertise to manage your microwave oven registration from initial scope confirmation and pre-testing review through CDF/CCL preparation, laboratory coordination, BIS portal submission, scrutiny query response, and licence renewal — ensuring you reach certification efficiently and with confidence.
Contact Rego Services today to begin your BIS CRS registration for Microwave Ovens and build a clear, compliant path to India's household appliance market.