UN R79 Supplement 5 (04 series) · UNECE Regulation No. 79 (ECE R79) — Uniform provisions concerning the approval of vehicles with regard to steering equipment.
UN R79 — Supplement 5 to the 04 series of amendments
Supplement 4 → 5
- What changed
- New paragraph 5.6.5. covers vehicles with systems that exhibit ACSF of Category D functionality. These vehicles must not be approved under this Regulation unless the vehicle has a DCAS that meets conditions (a) to (c).
- The requirements of paragraphs 5.6.2. and 5.6.4. now apply unless the vehicle has a DCAS that meets conditions (a) to (c). These paragraphs are the special provisions for ACSF of Category B1 and C.
- New paragraph 4.4.3. adds a letter “X” before the approval number in two cases. Case (a): ACSF of Category B1 or C exempted from the technical requirements under paragraph 5.6.2. and/or 5.6.4. Case (b): a steering system that exhibits ACSF of Category D functionality.
- Why
- The DCAS exemption for ACSF of Category B1 and C aims to avoid duplication of testing and/or incompatibility of requirements.
- The new marking helps Contracting Parties who do not apply the DCAS Regulation. They can assess whether a UN Regulation No. 79 approval is valid in their territory.
- UN Regulation No. 79 did not specify the version of UN Regulation No. 130 that it refers to, so the term “00 series of amendments” is added.
Q1What changed40 changes
ACSF of Category D on vehicles with a DCAS (paras. 1.2.3. and 5.6.5.)
Vehicles with systems that exhibit ACSF of Category D functionality must not be approved under this Regulation unless the vehicle has a DCAS. Conditions (a) and (b): the DCAS incorporates the function(s) and allows their activation only during operation and as part of DCAS. Condition (c): the DCAS complies with the technical requirements and transitional provisions of UN Regulation No. [DCAS]. Paragraph 1.2.3. no longer excludes ACSF of Category D, but still excludes ACSF of Category B2 or E until specific provisions are introduced. Under a new footnote, Contracting Parties who do not apply UN Regulation No. [DCAS] need not accept approvals of vehicles with ACSF of Category D. This also applies to vehicles which do not comply in full with the technical requirements for ACSF in this UN Regulation.
ACSF of Category B1 and C on vehicles with a DCAS (paras. 2.10., 5.6.2. and 5.6.4.)
New paragraph 2.10. adds a definition of “Driver Control Assistance System (DCAS)”. Vehicles with an ACSF of Category B1 must fulfil paragraph 5.6.2. unless the vehicle has a DCAS that meets conditions (a) to (c). Paragraph 5.6.4. has the same exception for power-driven vehicles with an ACSF system of Category C and trailers supporting lane change function(s). Conditions (a) and (b): the DCAS incorporates this function and allows its activation only during operation and as part of DCAS. Condition (c): the DCAS complies with the technical requirements and transitional provisions of UN Regulation No. [DCAS].
Letter “X” before the approval number (para. 4.4.3. and Annex 1, paras. 6.4. to 6.5.1.)
New paragraph 4.4.3. adds a letter “X” before the approval number to the approval mark in two cases. Case (a): ACSF of Category B1 or C have been exempted from the technical requirements of this UN Regulation according to paragraph 5.6.2. and/or 5.6.4. Case (b): the steering system exhibits functionality defined as ACSF of Category D. New Annex 1 item 6.4. asks yes/no whether the vehicle has ACSF which has been exempted from the requirements of this UN Regulation. New item 6.5. asks yes/no whether the vehicle is equipped with a steering system which exhibits functionality defined as an ACSF of Category D. Items 6.4.1. and 6.5.1. ask for details if the answer is yes.
Approval mark examples (Annex 2)
Annex 2 has two new approval mark examples with the letter “X” before the approval number. The text for each new example explains what the letter “X” indicates. The existing examples now refer to the 04 series of amendments to UN Regulation No. 79 instead of the 03 series. In one existing example, the approval number changes from 032439 to 042439. The drawings of the existing examples are replaced. A new footnote reads “The second number is given merely as an example.”
Reserved paragraphs no longer name ACSF of Category B2 (para. 5.6.3. and Annex 8, para. 3.4.)
Paragraph 5.6.3. and paragraph 3.4. of Annex 8 now read “(Reserved)”. Before this supplement, both read “(Reserved for ACSF of Category B2)”.
Version of UN Regulation No. 130 (para. 5.6.2.2.3. and Annex 8, para. 2.1.)
Three references to UN Regulation No. 130 now add “the original version (00 series of amendments)”. In paragraph 5.6.2.2.3., this applies to the LDWS sentence for vehicles of categories M2, M3, N2 and N3. In Annex 8, paragraph 2.1., the test lane markings must be in line with one of those in Annex 3 of that version. The manufacturer's documentation must show compliance with all other lane markings identified in Annex 3 of that version. The list of vehicle categories now has commas.
Web address of the R.E.3 in two footnotes
Two footnotes refer to the Consolidated Resolution on the Construction of Vehicles (R.E.3). They now give a web address on unece.org/transport instead of the old address on www.unece.org/trans. The rest of their text does not change.
Q2Why it changed
- Proposed by
- Experts from Germany, France, Netherlands, United Kingdom of Great Britain and Northern Ireland, and the European Commission (DCAS changes); expert from Australia (references to UN Regulation No. 130)
- Working party
- GRVA, 17th session (September 2023) and 18th session (January 2024)
Reasons
It is necessary to exempt the technical requirements for ACSF-B1 and ACSF-C when these have been approved to the DCAS Regulation, or met its requirements. The aim is to avoid duplication of testing and/or incompatibility of requirements.
Source
“It is necessary to exempt the technical requirements in UN R79 covering ACSF-B1 and ACSF-C when these have been approved to (or met the requirements of) R[DCAS], in order to avoid duplication of testing and/or incompatibility of requirements.”
Some approvals make use of the provisions specifically relating to DCAS. The new marking in paragraph 4.4.3. and Annex 2 is added so that these approvals can be identified. Contracting Parties who do not apply the DCAS Regulation can then assess whether a UN Regulation No. 79 approval is valid in their territory. The new footnote allows these Contracting Parties to maintain the previous restrictions imposed by UN Regulation No. 79.
Sources (3)
“A new marking provision is added so that approvals to UN R79 which have made use of the provisions specifically relating to DCAS can be identified”
“Contracting Parties who do not apply R[DCAS] can assess whether an UN R79 approval is valid in their territory or not.”
“The footnote allows Contracting Parties who do not apply UN Regulation on DCAS to maintain the previous restrictions imposed by UN Regulation No. 79.”
The General Guidance (ECE/TRANS/WP.29/1044/Rev.3) says that a reference to another UN Regulation must indicate the version of that UN Regulation. Any later version is equally acceptable. UN Regulation No. 79 did not specify the version of UN Regulation No. 130, so the term “00 series of amendments” is added.
Sources (2)
“Reference to the provisions of another UN Regulation shall indicate the version of that UN Regulation, with the understanding that any later version will be equally acceptable”
“Currently, UN Regulation No. 79 does not specify the version of UN Regulation 130 it refers to, hence it is proposed to include the term ‘00 series of amendments’ to meet the requirements of the Guidance document.”
The reference to ACSF-B2 in the reserved paragraph 3.4. of Annex 8 can now be removed. Provisions for ACSF-B2 will not be added to UN Regulation No. 79.
Source
“Reference to ACSF-B2 in this reserved paragraph can now be removed, as provisions for ACSF-B2 will not be added to UN Regulation No. 79.”
Proposer's reason (informal document GRVA-18-15)
Approval of ACSF of Category B2, D or E functionality was excluded from UN Regulation No. 79 until specific provisions are introduced. Specific provisions for functions meeting the definition of ACSF-D now exist, although they have been written into another (new) regulation.
Submitted by Task Force on ADAS. Working party adoption: ECE/TRANS/WP.29/GRVA/18, para. 82.
Sources (2)
“Approval of steering systems exhibiting Automatically Commanded Steering Function of category B2, D or E functionality was excluded from UN Regulation No. 79 until ‘specific provisions are introduced’ into the Regulation.”
“Specific provisions for functions meeting the definition of ACSF-D now exist, although they have been written into another (new) regulation.”
Document trail
- 2023-07ProposalECE/TRANS/WP.29/GRVA/2023/26Proposal from Australia on references to UN Regulation No. 130
- —Working party adoptsECE/TRANS/WP.29/GRVA/17Session report, para. 86
- 2023-11ProposalECE/TRANS/WP.29/GRVA/2024/12Proposal on the scopes of UN Regulation No. 79 and the DCAS Regulation
- 2023-12Sent to WP.29ECE/TRANS/WP.29/2024/8Proposed Supplement 5 to UN Regulation No. 79 (version of UN Regulation No. 130), sent to WP.29 and AC.1
- —RevisedGRVA-18-15Changed text from the Task Force on ADAS
- —Working party adoptsECE/TRANS/WP.29/GRVA/18Session report, para. 82
- 2024-02Sent to WP.29ECE/TRANS/WP.29/2024/36Proposed Supplement 5 to UN Regulation No. 79 (DCAS amendments), sent to WP.29 and AC.1
- 2024-03WP.29 adoptsECE/TRANS/WP.29/1177Adopted at the 192nd session (session report, para. 140)
- 2024-09-22In forceC.N.412.2024.TREATIES-XI.B.16.79UN depositary notification
Q3Who is affected
Vehicle manufacturer
- For approval of a vehicle with ACSF of Category D functionality, make sure it has a DCAS meeting paragraph 5.6.5.
- Before you use the DCAS exception in paragraph 5.6.2. or 5.6.4., check the DCAS against conditions (a) to (c).
- Check that the approval mark has the letter “X” before the approval number when paragraph 4.4.3. applies.
- Document compliance with all other lane markings in Annex 3 of UN Regulation No. 130 (00 series of amendments).
Component supplier
- If you supply a DCAS, tell the manufacturer whether it meets (a) to (c) of paragraphs 5.6.2., 5.6.4. and 5.6.5.
- For M2, M3, N2 and N3 vehicles, tell the manufacturer which UN Regulation No. 130 version your LDWS fulfils.
Technical service / Approval authority
- For a vehicle with ACSF of Category D functionality, check that it has a DCAS meeting conditions (a) to (c).
- If a vehicle uses the DCAS exception in paragraph 5.6.2. or 5.6.4., check the DCAS against conditions (a) to (c).
- Use test lane markings in line with Annex 3 of UN Regulation No. 130 (00 series of amendments).
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ⓘ This report gives advice only. It is not legal or type-approval advice.
More UN R79 change reports
- 05 series — Supplement 1
- 05 series — Base text
- 04 series — Supplement 12
- 04 series — Supplement 11
- 04 series — Supplement 10
- 04 series — Supplement 9
- 04 series — Supplement 8
- 04 series — Supplement 7
- 04 series — Supplement 6
- 04 series — Supplement 4
- 04 series — Supplement 3
- 04 series — Supplement 2
- 04 series — Supplement 1
- 04 series — Base text
- 03 series — Supplement 17
- 03 series — Supplement 16
- 03 series — Supplement 15
- 03 series — Supplement 14
- 03 series — Supplement 13
- 03 series — Supplement 12
- 03 series — Supplement 11
- 03 series — Supplement 10
- 03 series — Supplement 9
- 03 series — Supplement 8
- 03 series — Supplement 7
- 03 series — Supplement 6
- 03 series — Supplement 5
- 03 series — Supplement 4
- 03 series — Supplement 3
- 03 series — Supplement 2
- 03 series — Supplement 1