Sec. R-48. 29-A MRSA §2075, sub-§1-A is enacted to read:

1-A.__Minimum speed limit.__When the Department of Transportation determines, on the basis of an engineering and traffic investigation, that slow speeds on a public way consistently impede the normal and reasonable movement of traffic, the Commissioner of Transportation, with the approval of the Chief of the Maine State Police, may establish a minimum speed limit.

A person may not operate a vehicle below a posted minimum speed limit, except when necessary for safe operation.

Sec. R-49. 29-A MRSA §2076, sub-§3, as enacted by PL 1995, c. 247, §5 and affected by Pt. B, §5, is amended to read:

3. Required stops. The operator of one of the following vehicles may not cross a railroad track shall stop the vehicle at a grade crossing unless the vehicle stops between 50 feet and 15 feet from the nearest rail, listens listen, looks look in each direction along the tracks for an approaching train and ascertains ascertain that no train is approaching:

A. A bus transporting passengers;

B. A motor vehicle transporting any quantity of chlorine;

C. A motor vehicle that, in accordance with 49 Code of Federal Regulations, Part 172, Subpart F, is required to be marked or placarded;

D. A cargo tank vehicle, whether loaded or empty, used to transport:

(1) A hazardous material as defined in 49 Code of Federal Regulations, Parts 170 to 189; or

(2) A commodity under special permit in accordance with the provisions of the Code of Federal Regulations; or

E. A cargo tank vehicle transporting a commodity that at the time of loading has a temperature above its flash point