UN R110 Supplement 2 (06 series) · UNECE Regulation No. 110 (ECE R110) — Uniform provisions concerning the approval of: I. Specific components of motor vehicles using compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system II. Vehicles with regard to the installation of specific components of an approved type for the use of compressed natural gas (CNG) and/or liquefied natural gas (LNG) in their propulsion system.
UN R110 — Supplement 2 to the 06 series of amendments
Supplement 1 → 2
- What changed
- New paragraphs 0. and 0.1. to 0.1.3. add an Introduction on vehicles of categories X and Y and on conventional vehicles with an ADS.
- New paragraph 4.79. defines “Occupant compartment”. Paragraphs 18.3.1.15., 18.5.5.1., 18.5.5.7., 18.8.7. and 18.10.2. now say “occupant compartment” instead of “passenger compartment”.
- A new sentence in paragraph 18.1.7. allows a heating system connected to the CNG and/or LNG system to heat the occupant compartment and/or load area.
- Why
- Supplement 2 to the 06 series is introduced to take into account vehicles of categories X and Y, and conventional vehicles with an ADS.
- New paragraph 4.79. aims to clarify the provisions for vehicles in case of a separate driver’s compartment.
Q1What changed16 changes
New Introduction: the purpose of Supplement 2 (paras 0. to 0.1.2.)
New paragraph 0. adds an Introduction to the Regulation. Paragraph 0.1. says that Supplement 2 to the 06 series of amendments is introduced to take into account vehicles of categories X and Y. It is also introduced to take into account conventional vehicles which are equipped with an Automated Driving System (ADS). The amendment intends to extend the Regulation to vehicles without a driver, a driver’s compartment and without manual driving controls in the vehicle (para. 0.1.1.). Provisions related to an absent “driver/driver’s compartment/manual driving controls” must not be taken into account, unless this amendment already covers them. Paragraph 0.1.2. says that, for vehicles equipped with an ADS, no special provisions or exemptions apply.
New definition of “Occupant compartment” and its use (paras 4.79., 18.3.1.15., 18.5.5.1., 18.5.5.7., 18.8.7. and 18.10.2.)
New paragraph 4.79. defines “Occupant compartment”. It means the space for occupant (driver and/or passengers) accommodation. Its limits are the roof, floor, side walls, doors, outside glazing and front bulkhead. The other limit is the plane of the rear compartment bulkhead or the plane of the rear seat back support. Paragraphs 18.3.1.15., 18.5.5.1., 18.5.5.7., 18.8.7. and 18.10.2. now say “occupant compartment” instead of “passenger compartment”. New paragraph 0.1.3. says that new paragraph 4.79. aims to clarify the provisions for vehicles in case of a separate driver’s compartment.
Heating system connected to the CNG and/or LNG system (para. 18.1.7.)
Paragraph 18.1.7. has a new second sentence. Notwithstanding the provisions of paragraph 18.1.7., vehicles may be fitted with a heating system to heat the occupant compartment and/or the load area. This applies to a heating system which is connected to the CNG and/or LNG system. The first sentence, on appliances strictly required for the proper operation of the engine of the motor vehicle, stays the same.
Footnotes that refer to the Consolidated Resolution (R.E.3)
Four footnotes now refer to document ECE/TRANS/WP.29/78/Rev.8 of the Consolidated Resolution on the Construction of Vehicles (R.E.3). Before, they referred to Rev.3 or Rev.6. Each of them now gives the web address https://unece.org/transport/vehicle-regulations/wp29/resolutions. In the two footnotes that start “As defined in”, the words “para. 2” are no longer there. In the text that GRSG sent to WP.29, the footnote to paragraph 1 and Annex 4F said “Rev.8, para. 2”. AC.1 adopted ECE/TRANS/WP.29/2026/117 as amended by Annex VI of ECE/TRANS/WP.29/1192, which gives this footnote without “para. 2”.
Q2Why it changed
- Proposed by
- Expert from the Kingdom of the Netherlands on behalf of the Task Force on Automated Vehicles Regulatory Screening (TF-AVRS)
- Working party
- GRSG, 131st session (April 2026)
Reasons
Supplement 2 to the 06 series of amendments is introduced to take into account vehicles of categories X and Y. It is also introduced to take into account conventional vehicles which are equipped with an ADS.
Sources (2)
“Supplement 2 to the 06 series of amendments is introduced to take into account vehicles of categories X and Y1”
“as well as conventional vehicles which are equipped with an Automated Driving System (ADS)1.”
The UN Regulation was originally drafted for vehicles with a driver’s compartment and manual driving controls. The amendment intends to keep the spirit of the UN Regulation. It also intends to extend its application to vehicles without a driver, a driver’s compartment and without manual driving controls in the vehicle.
Sources (2)
“The UN Regulation was originally drafted for vehicles with a driver’s compartment and manual driving controls.”
“It is the intention of this amendment to keep the spirit of the UN Regulation and to extend its application to vehicles without a driver, a driver’s compartment and without manual driving controls in the vehicle.”
New paragraph 4.79. aims to clarify the provisions for vehicles in case of a separate driver’s compartment.
Source
“New paragraph 4.79. aims to clarify the provisions for vehicles in case of a separate driver´s compartment.”
Document trail
- 2026-01ProposalECE/TRANS/WP.29/GRSG/2026/4Proposal prepared by the expert from the Kingdom of the Netherlands on behalf of TF-AVRS
- —Working party adoptsECE/TRANS/WP.29/GRSG/110Session report, para. 37
- 2026-04Sent to WP.29ECE/TRANS/WP.29/2026/117Text that GRSG sent to WP.29 and AC.1
- —Amended in sessionWP.29-199-10Amendments for the AC.1 vote, reproduced in Annex VI of ECE/TRANS/WP.29/1192
- 2026-06-24WP.29 adoptsECE/TRANS/WP.29/1192Adopted at the 199th session (session report, para. 103)
- PendingIn forceDate not yet known
Q3Who is affected
Vehicle manufacturer
- Use the paragraph 4.79. definition of “Occupant compartment” when you apply paragraphs 18.3.1.15., 18.5.5.1., 18.5.5.7., 18.8.7. and 18.10.2.
- To heat the occupant compartment and/or the load area, consider a heating system connected to the CNG and/or LNG system.
- For a vehicle without “driver/driver’s compartment/manual driving controls”, find which related provisions this amendment already covers (para. 0.1.1.).
Component supplier
- No direct action for this role.
Technical service / Approval authority
- Apply the paragraph 4.79. definition of “Occupant compartment” when you check paragraphs 18.3.1.15., 18.5.5.1., 18.5.5.7., 18.8.7. and 18.10.2.
- Be ready for heating systems connected to the CNG and/or LNG system that heat the occupant compartment and/or load area.
- Leave out provisions related to an absent driver/driver’s compartment/manual driving controls, unless this amendment already covers them (para. 0.1.1.).
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ⓘ This report gives advice only. It is not legal or type-approval advice.