UN R148 — 01 series of amendments

The Introduction now says that the 01 series of amendments deals with the identified amendments and clarifications to this Regulation. Their goal is to be technologically neutral, performance based and able to be tested objectively, to the current maximum possible extent. Three earlier paragraphs of the Introduction are deleted, including the one on the use of the “Unique Identifier” instead of conventional type approval markings. New paragraph 2.3. defines “Being part of the lamp” as “to be physically included in the lamp body or to be external, separated or not, and declared by the applicant as part of the lamp system”. The list of devices now begins “This Regulation applies to the following light-signalling devices (lamps)”.

The change index table of paragraph 3.2.5. now has a column for the 01 series of amendments, with change index 1. Paragraph 3.3. is now titled “Approval marking and other markings”. In paragraph 3.3.1.1., the words “if technically not possible” before the approval marking option are deleted. Under new paragraph 3.3.5.3., a detachable outer lens and the main body must both bear the Unique Identifier or the approval marking. Annex 1 has new item 9.4. on whether an additional test is conducted according to paragraph 4.8.3.1.1.

On request of the applicant, a lamp (function) may incorporate only one manufacturer logo inside its apparent surface, under the conditions of new paragraph 4.5.5. These conditions are that the lamp fulfils all requirements for its specific function, plus points (a) to (d). Only the logo of the brand name of the vehicle manufacturer or the body manufacturer is allowed. The enclosed light emitting surface of the logo, including transparent and non-transparent components, must not exceed 100 cm² in the direction of the reference axis. The logo light emitting surface, including transparent and non-transparent components, need not be symmetrical by itself, notwithstanding paragraph 5.5.2. of UN Regulation No. 48. Stop lamps, direction indicator lamps and reversing lamps must not incorporate a logo.

Under paragraph 4.4.1., an assembly of two independent lamps approved as a lamp marked “D” now also applies to daytime running lamps. It no longer excludes position lamp categories MA and MR, stop lamp category MS and direction indicator categories 11, 11a, 11b, 11c and 12. Replaceable light sources approved to UN Regulation No. 99 are now allowed, if no restriction on their use is made at application for type approval. Under new paragraph 4.7.2.3., light signalling devices must not generate radiated or power line disturbances that cause a malfunction of other vehicle electric/electronic systems. Under new paragraph 4.8.3.1.1., the applicant may request an additional test of maximum intensity from 165° to 180° outboard horizontally and -2.5° to +5° vertically. New paragraph 4.8.3.6. requires tests for compliance of the luminous intensities according to new Annex 8.

In paragraph 5., the requirements for each lamp (function) now come under titled subparagraphs, such as “Measurement”, “Failure provisions” and “Colour”. The tables for daytime running lamps and direction indicators now have columns that refer to points (a) to (d) of paragraph 4.8.3.1. The daytime running lamp table now gives 6.00∙10² cd as the maximum luminous intensity for a lamp marked "D". For a stop lamps pair (MS), the applicant may ask that the standard light distribution is considered from the VV line to the outboard only. Annex 2 is now titled “Angles of geometric visibility” instead of “Light distribution in space, horizontal and vertical”.

Paragraphs 3.5.1.1. and 3.5.2. are now paragraphs 6.1.1. and 6.2., in the new section “Conformity of production”. Paragraph 3.5. is now titled “Conformity of production procedures”. The conformity of production procedures must comply with the 1958 Agreement, Schedule 1 (E/ECE/TRANS/505/Rev.3), with the requirements set forth in paragraph 6. Under paragraph 6.1., the compliance to be verified is now with the requirements of paragraph 5., instead of paragraphs 4. and 5. Paragraphs 3.1.2.5. and 6.3. now refer to paragraph 4.11 of IEC 60809, Edition 4, instead of Edition 3, for non-replaceable filament light sources.

New paragraph 7.2. gives transitional provisions for the 01 series of amendments. Contracting Parties applying this Regulation must not refuse to grant or accept 01 series approvals from the series' official date of entry into force. As from 1 September 2026, Contracting Parties applying this Regulation need not accept approvals to the preceding series first issued after 1 September 2026. They must continue to accept approvals to the preceding series first issued before 1 September 2026. Approvals to any previous series must continue to be granted and accepted for replacement devices for vehicles in use that cannot technically meet new requirements.