Code of Maryland Regulations › Title 11 - DEPARTMENT OF TRANSPORTATION › Subtitle 07 - MARYLAND TRANSPORTATION AUTHORITY › Chapter 11.07.01 - Transportation of Hazardous Materials › Section 11.07.01.04 - Tunnel Restrictions

Current through Register Vol. 51, No. 14, July 12, 2024
A. This
				regulation does not apply to fuel contained in the fuel system of the
				transporting vehicle, or in the fuel systems of vehicles and equipment being
				towed or carried.
B. Flames used
				for heating vehicles or loads shall be extinguished before the vehicle enters
				any tunnel or its approaches.
C.
				The following classes of hazardous materials are prohibited from being
				transported through any tunnel or its approaches, as indicated:
(1) Forbidden materials and forbidden
				explosives are prohibited;
(2)
				Class 1 explosives are prohibited;
(3) Class 2, division 2.1 flammable gas is
				prohibited, with exceptions for propane, LPG, CNG, LNG, and other flammable
				compressed gas in U.S.D.O.T. approved containers, in quantities not to exceed
				10 pounds gross weight per container, and 100 pounds gross weight per
				vehicle;
(4) Class 2, Division 2.2
				nonflammable compressed gas is prohibited, with the following exceptions:
(a) Argon, compressed,
(b) Argon, refrigerated liquid,
(c) Carbon dioxide, refrigerated
				liquid,
(d) Compressed air in
				containers only, although this is prohibited if in tank vehicles,
(e) Helium, compressed,
(f) Nitrogen, refrigerated liquid,
(g) Nitrogen, compressed, or
(h) Oxygen in containers only, although this
				is prohibited if in tank vehicles;
(5) Class 2, division 2.3 poisonous gas is
				prohibited;
(6) Class 3, flammable
				liquid is prohibited, with exceptions for motor fuel and petroleum-based
				products in U.S.D.O.T. or Underwriter's Laboratory approved containers in total
				quantities not to exceed 5 gallons per container and 20 gallons per
				vehicle;
(7) Class 3, combustible
				liquid is permitted, with the exception of formaldehyde solutions which are
				prohibited;
(8) Class 4, division
				4.1 flammable solid is prohibited, with the exception of fusees in quantities
				not to exceed 100 pounds per vehicle;
(9) Class 4, division 4.2 spontaneously
				combustible materials are prohibited;
(10) Class 4, division 4.3 dangerous-when-wet
				materials are prohibited;
(11)
				Class 5, division 5.1 oxidizers are prohibited;
(12) Class 5, division 5.2 organic peroxides
				are prohibited;
(13) Class 6,
				division 6.1 poisonous materials are prohibited, with the following exceptions:
(a) Arsenic in any form or
				compound,
(b) Tree-killing or
				weed-killing liquid compounds,
(c)
				Cyanide of potassium,
(d) Cyanide
				of sodium,
(e) Drugs, chemicals,
				medicines, or cosmetics, not otherwise specified, liquid or solid,
(f) Insecticides, dry, or
(g) Motor fuel antiknock compound;
(14) Class 6, division 6.2
				infectious substances are prohibited;
(15) Class 7, radioactive materials are
				prohibited, with the exception of manufactured articles such as instrument or
				clock dials, electronic tubes of which radioactive materials are a component
				part, watches, X-ray machines, smoke detectors, etc;
(16) Class 8, corrosive materials are
				prohibited, except batteries;
(17)
				Class 9, miscellaneous hazardous material is prohibited, with the exception of
				oils, N.O.S., with a flashpoint not less than 93°C (200°F);
				and
(18) Other regulated material:
				ORM-D is permitted.