1. A. Alternative-fuel vehicles powered by liquefied petroleum gas (LPG), liquefied natural gas (LNG), or compressed natural gas (CNG) shall be permitted to use the Baltimore Harbor Tunnel and the Fort McHenry Tunnel, if the:

   1. (1) Vehicle has a:

      1. (a) Dedicated alternative-fuel system installed by the manufacturer of the vehicle, or
      2. (b) Fuel system which has been properly converted to an alternative fuel system;

   2. (2) Vehicle alternative-fuel system conforms to applicable industry standards, including:

      1. (a) NFPA 52—Standard for Compressed Natural Gas (CNG) Vehicular Fuel Systems (1992 Edition)(c), which is incorporated by reference;
      2. (b) NFPA 58—Standard for the Storage and Handling of Liquefied Petroleum Gases (1989 Edition)(c), which is incorporated by reference; and
      3. (c) NFPA 59A—Standard for the Production, Storage and Handling of Liquefied Natural Gas (LNG) (1985 Edition)(c), which is incorporated by reference;
   3. (3) Vehicle alternative-fuel system conforms to applicable federal regulations, including 40 CFR 85, 86, and 600, when adopted by the Environmental Protection Agency pursuant to Notice of Proposed Rule Making, 52 Federal Register 52911 et seq. (November 5, 1992), which is incorporated by reference; and
   4. (4) Fuel capacity of the vehicle does not exceed 150 pounds, net weight of fuel.
2. B. Alternative-fuel vehicles shall display all markings and symbols required by law or regulation to identify the alternative-fuel system.

Authority: Transportation Article, §§4-205, 21-1403, and 21-1411, Annotated Code of Maryland

Effective date: January 25, 1980 (7:2 Md. R. 116)

Regulation .20B amended effective September 28, 1981 (8:19 Md. R. 1566)

Regulations .01—.20 repealed and new Regulations .01—.06 adopted effective March 24, 1986 (13:6 Md. R. 683)

Regulation .01 amended effective February 18, 1991 (18:3 Md. R. 306); June 7, 1993 (20:11 Md. R. 913)

Regulation .01B amended effective August 4, 2014 (41:15 Md. R. 891)

Regulation 02 amended effective June 7, 1993 (20:11 Md. R. 913)

Regulation .02B, C amended effective August 4, 2014 (41:15 Md. R. 891)

Regulation .02C amended effective February 18, 1991 (18:3 Md. R. 306)

Regulation .03 repealed and new Regulation .03 adopted effective June 7, 1993 (20:11 Md. R. 913)

Regulation 04 amended effective June 7, 1993 (20:11 Md. R. 913)

Regulation .04D, G amended effective February 18, 1991 (18:3 Md. R. 306)

Regulation .04H, I adopted effective February 18, 1991 (18:3 Md. R. 306)

Regulation 05 amended effective June 7, 1993 (20:11 Md. R. 913)

Regulation .05A amended effective February 18, 1991 (18:3 Md. R. 306)

Regulation .05B amended effective August 4, 2014 (41:15 Md. R. 891)

Regulation .06A amended effective February 18, 1991 (18:3 Md. R. 306); August 4, 2014 (41:15 Md. R. 891)