Uniform Provisions Concerning the Approval of:
I Specific LPG (Liquefied Petroleum Gases) Retrofit Systems to be Installed in Motor Vehicles for the Use of LPG in their propulsion system
II. Specific CNG (Compressed Natural Gas) Retrofit Systems to be Installed in Motor Vehicles for the Use of CNG in their propulsion system

Related groups: GFV
UN R115 | Revision 1 | Amendment 1 (2014)
24 Jun 2014 2014-09-20 14:28:54 UTC 1 1 00 series of amendments | Supplement 6 Based upon the adopted proposal: WP.29/2013/115

Proposal to align UN R115 with UN R83, replacing FCmean with FCnorm as defined in UN R101. FCmean, as defined in paragraphs 6.1.2.4.3.2. (LPG) and 6.2.2.4.3.2. (CNG) of UN Regulation No. 115, is the mean value of the fuel consumption of all the parent (test) vehicles, whereas the calculation of the gas ratio has to be made individually for each parent vehicle.

UN R115 | Revision 1 | Amendment 2 (2017)
22 Feb 2017 2017-05-31 17:11:03 UTC 1 2 00 series of amendments | Supplement 7 Based upon the adopted proposal: WP.29/2016/44

Proposal to simplify the communication model of approval under UN Regulation No. 115.

UN R115 | Revision 1 | Amendment 3 (2020)
20 Jan 2020 2020-02-20 08:31:17 UTC 1 3 00 series of amendments | Supplement 8 Based upon the adopted proposal: WP.29/2019/45

Proposal to align UN R115 with the GTR No. 15 WLTC test cycle.

UN R115 | Revision 1 | Amendment 3 | Corrigendum 1 (2020)
24 Apr 2020 2020-05-05 13:00:18 UTC 1 3 1 00 series of amendments | Supplement 8 | Corrigendum 1 Based upon the adopted proposal: WP.29/2020/49

Proposal to correct errors identified in the text of Supplement 8 (document WP.29/2019/45) as adopted by the World Forum.

UN R115: Revision 1 (2013)
21 Aug 2013 2013-08-22 16:22:21 UTC 00 series of amendments | Supplement 5 00 series of amendments | Supplement 4 | Corrigendum 1 00 series of amendments | Supplement 4 00 series of amendments | Supplement 3 00 series of amendments | Corrigendum 1 00 series of amendments | Supplement 1 | Corrigendum 1 00 series of amendments | Supplement 2 00 series of amendments | Supplement 1
Earlier texts may be available through the UN Official Document System.