The EMC informal group proposes to hold a meeting in Tokyo during the 2nd or 4th week of November 2027, with demonstration venue also in Tokyo. Proposed demonstration content is to be determined for automated driving systems. The meeting contents are subject to change.

The agenda and minutes from the 51st session were adopted without comment. The group discussed a status report on Supplement 3 to UN R10.07, updated Terms of Reference, and proposals for the 08 series of amendments, with decision to move submission to 2027/2028 to integrate test modes for automated driving systems. The group reviewed proposals on steer-by-wire systems, CISPR average detector clarification, flicker requirements, and AC/DC charger specifications, concluding that most require further elaboration or revision. The 53rd meeting is scheduled for 1–2 July 2026 in Paris.

Proposal to clarify ADS Active Mode and methods to activate ADS using test equipment or by modifying software of in-vehicle ADS-related ECUs, clarify test objects for ESA at component-level or system-level, and clarify test methods when ADS cannot be activated in an anechoic chamber, when testing in a non-active state using warning indicators or diagnostic functions, or when errors occur upon activation of ADS. This is a preliminary proposal intended for presentation at IWG EMC meetings in Autumn 2026.

Methods for evaluating electromagnetic immunity of blind-spot detection systems are proposed using a simple reciprocating motion device equipped with a reflector. The electromagnetic immunity test is conducted after the BSD system has been activated. Vehicle’s electromagnetic immunity test methods and conditions are consistent with the previous ones. Reproducibility has been verified across various vehicle models with only minor adjustments required. The proposal seeks opinions from member countries regarding the necessity of electromagnetic immunity evaluation methods for BSD systems.

Proposal regarding methods for evaluating electromagnetic immunity of blind-spot detection systems. The proposal identifies this as a subject for discussion as part of ADAS evaluation methods. The form requests consideration of revisions to evaluation methods, with reference to presentation materials. The proposal’s disposition status remains to be determined by the IWG.

CLEPA proposes standardized testing conditions for harmonics and flicker in UN R10 across countries with differing grid voltages and frequencies. Three cases are presented: Case 1 applies requirements to 220–240 V single-phase or 380–415 V three-phase at 50 or 60 Hz only; Case 2 permits multi-voltage operation but tests only at 220–240 V or 380–415 V; Case 3 applies scaled limits for region-specific operation at different voltages such as 100 V, with IEC 61000-3-3 and IEC 61000-3-11 marked not applicable due to impedance specifications limited to 220–250 V systems.

The 7th Edition of IEC CISPR 12 was issued in June 2025, with work commencing on an 8th Edition. Two Special Task Forces are developing updates: one investigating dynamic testing at alternative fixed speeds and acceleration/deceleration modes, and another developing a measurement method for the frequency range 1 GHz to 6 GHz. An 8th Edition CISPR 12 is estimated for issue May–July 2028. For IEC CISPR 36, a Special Task Force concluded that conducted voltage emission measurements are more appropriate than magnetic radiated methods for charging mode testing. A 2nd Edition incorporating conducted voltage charging mode measurements is estimated for issue September–November 2027.

The Netherlands proposes introducing a separate part 2 addressing immunity-related functionality on lateral movement for steer-by-wire and automated driving systems. Harmonics should be tested when issues are observed; in the cited example, step sizes above and below 745–755 MHz and harmonic frequencies at 1500 MHz and 375 MHz require testing. UN R10 should address specific immunity features across multiple UN Regulations, or references should be moved to individual regulations. Test procedures for complex systems like steer-by-wire and brake-by-wire require improvement, including clearer protocols and discussion of specialized technical units. Dwell time must be sufficient to observe all potential fail criteria in agreement between manufacturer and technical service. Antenna switching during testing at 3m versus 10m positions should be forbidden. EMC shielding must be robust and durable, excluding non-integral ferrite blocks and loose components, with critical details recorded in test reports.

Proposal to add para. 6.2.1.3 defining method of measurement in the frequency range 1 GHz to 6 GHz, add para. 6.2.2.5 establishing limits of disturbance with peak detector at vehicle-to-antenna spacings of 3.0 ± 0.05 m and 10.0 ± 0.2 m, add para. 6.3.2.5 establishing limits of disturbance with average detector at vehicle-to-antenna spacings of 3.0 ± 0.05 m and 10.0 ± 0.2 m, rename para. 6.5.2 to specify frequency range 30 MHz to 1000 MHz, add para. 6.5.3 establishing ESA broadband type approval limits in the frequency range 1 GHz to 6 GHz with measurement frequency requirements based on highest internal frequency, add para. 7.3 establishing specifications concerning narrowband electromagnetic radiation from vehicles with method of measurement and type approval limits, rename para. 7.10.2 to specify frequency range 30 MHz to 1000 MHz, add para. 7.10.3 establishing ESA broadband type approval limits in the frequency range 1 GHz to 6 GHz with measurement frequency requirements, add Annex XY defining method of measurement of radiated broadband and narrowband electromagnetic emissions from vehicles in the frequency range 1 GHz to 6 GHz, add Annex XZ defining method of measurement of radiated broadband electromagnetic emissions from electrical/electronic sub-assemblies with test setup figures, and add Appendices z1 and z2 establishing vehicle reference limits at 10 m and 3 m antenna-vehicle separation respectively.

Proposal to amend para. 3.3., Group 5 to add LED replacement light source categories H9, H10, HB3, and HIR2, insert new sheets H9_LEDr/1 to 7, H10_LEDr/1 to 7, HB3_LEDr/1 to 7, and HIR2_LEDr/1 to 7 in Annex 3, and update the Status table to reflect Amendment 13 based on TFSR-28 documents, with H10 proposal based on GRE-94-19, specifications derived from enforced LEDr category sheets and equivalence criteria detailed in GRE-83-15.

The GRE Task Force on LED Substitutes / Retrofits prepared proposals for four new LED replacement light source categories: H9_LEDr, H10_LEDr, HIR2_LEDr, and HB3_LEDr, developed in accordance with GRE-91-14 and GRE-94-18 and taking into account equivalence criteria detailed in GRE-83-15. All four categories meet photometric, thermal, and electrical performance requirements using established bi-directional equivalence concepts. H9_LEDr, HIR2_LEDr, and HB3_LEDr employ control point requirements instead of black-top specifications. All four categories have longer area B with modified homogeneity requirements. H9_LEDr contains a single luminous flux specification of 1875 lm at 13.2V to limit impact on beam performance in high-beam and bi-functional applications.

The 79th SLR Informal Working Group Meeting will be held 7–11 September 2026 at AP Ichigaya, 8th Floor, AP Ichigaya, Ichigaya Osato Building, 1–10 Gobancho, Chiyoda-ku, Tokyo 102–0076, Japan. A reception is scheduled for 9 September 2026 at 18:00–20:00. The meeting includes sessions on Task Force on Glare Prevention and Task Force on Lamps Under Parked Conditions and Task Force on Autonomous Vehicle Signalling Requirements, though it has not yet been decided whether the latter two task forces will be held during the Tokyo meetings. Participants should complete the registration form.

The 29th meeting of the GRE Task Force on Substitutes/Retrofits is scheduled for 13 July 2026, 13:00–14:00 CEST, held online via Teams. The agenda includes discussion of the way forward, review of GRE94 report, proposals for R.E.5 covering H11 LEDr, H8 LEDr, H16 LEDr, HB4 LEDr, front fog types including H10, high beam types including HIR2, HB3, and H9, low beam types, clarification of R37 requirements for LEDr, enforcement and market surveillance, preparation and submissions to GRE95, any other business, and next meetings.

The Task Force on Substitutes/Retrofits reviewed the status of LED retrofit light sources and confirmed a consolidated proposal for four category sheets covering H10, HIR2, HB3, and H9 high beam types. Documents TFSR-29-02 and TFSR-29-03 were agreed for submission to GRE95 as formal and informal documents respectively. The group discussed enforcement and market surveillance issues, including concerns about non-compliant products lacking proper cap keying and approval marking visibility when installed. A status report detailing these non-compliance cases will be prepared for GRE95 consideration.

This intermediate draft proposes a new UN Regulation on ADS Marker Lamps based on discussions in technical groups. The regulation establishes requirements for approval of ADS Marker Lamps for motor vehicles of categories M₁–M₃, N₁–N₃, L₆–L₇, and O, as well as vehicle installation requirements. Key provisions include definitions of front, rear, and side ADS Marker Lamp categories with specifications for luminous intensity, colour (blue-green), geometric visibility angles, and positioning. The regulation covers lamp approval procedures, technical requirements, conformity testing, markings, and vehicle-level installation specifications including electrical connections, operational conditions, and interactions with direction indicators. Transitional provisions and communication forms for approvals are included.

The task force reviewed draft technical requirements for ADS-ML (ADS marker lamps) as presented in AVSR-31-02 and discussed a hybrid regulation draft in AVSR-31-03. Key discussions addressed substitution of conventional functions, visibility requirements, installation specifications for vehicles of category M₁ and N₁, and deletion of response time requirements. Trailers were deleted from the scope. The taskforce agreed to further work on the hybrid regulation with a 32nd intermediate meeting scheduled for 7 July 2026 and a 33rd meeting in Tokyo in September 2026.

The agenda includes discussion of ADS marker lamps with a draft proposal for a hybrid regulation, miscellaneous matters, and next steps including a working plan for future activities. The next meeting is scheduled for 7 September 2026, 13:00–17:00 JST in Tokyo as a hybrid meeting.

Discussion focused on ADS marker lamps including scope regarding agricultural vehicles, incorporation with direction indicators, and intensity reduction possibilities, with feedback from France and Japan requested on critical topics documented in AVSR-32-02. Input from GTB on Part I is expected by mid-July, with a cleaned-up proposal to be sent to GRE-95 in October following the 33rd meeting on 7 September 2026 in Tokyo (hybrid format per SLR-78-01/Rev.2).

Proposal to address open questions for a hybrid regulation for ADS marker lamps:

• Whether agricultural vehicles (category T) should be included in the scope,
• Whether a reference to UN-R86 is needed,
• Which use cases should be considered for ADS ML, including validity for parking conditions,
• Which functions required by UN-R48 could be substituted by an ADS ML,
• What interested contracting parties think about the proposed provisions for ADS ML totally or partially reciprocally incorporated with other functions.

The 53rd session of the Electromagnetic Compatibility IWG was held 1–2 July 2026 in Paris. The agenda addressed proposals for UN R10.08 and related standards, including standardized testing conditions for harmonics and flicker, radiated emission requirements at 1–6 GHz, blind spot detection immunity testing, and steer-by-wire failure criteria. Key decisions included establishing a small drafting group to develop 1–6 GHz requirements if CISPR D produces no usable results by end of 2026, postponing discussion of AC/DC charger proposals, tasking CLEPA and OICA to prepare a joint proposal on harmonics and flicker, and organizing a consolidated version of UN R10.07 with Supplements 1–3 for December 2026. Future sessions are scheduled through September 2027, with a face-to-face meeting proposed for November 2027 in Tokyo. Documents EMC-53-05, EMC-53-08, EMC-53-10, and EMC-53-11/Rev.1 were introduced during the session.

The agenda includes discussion of ADS marker lamps including a draft proposal for a hybrid regulation with remarks from the chairman on document AVSR-31-03/Rev.2 and GTB input consolidated in AVSR-31-02, miscellaneous items, and next steps including a working plan for future activities.

Proposal to add a footnote to the Scope stating that nothing in the regulation prevents a Party from prohibiting the application of these lamps, renumber para. 10.5. as 10.6., and amend para. 10.6.1. to require all ADS Marker Lamps installed on the vehicle to be automatically switched ON by the ADS when performing the DDT, to be switched OFF when conditions no longer exist, to always allow independent switching ON and OFF from all other lighting functions, and to not be switched ON when an ADS performs the DDT in a country that does not allow the use of ADS Marker Lamps.