The provisions of this chapter shall not apply to any of the following activities:
1. The extraction of coal by a landowner for his own noncommercial use from land owned or leased by him; and
2. The extraction of coal as an incidental part of federal, state or local government-financed highway or other construction under regulations established by the Director.
1979, c. 290; 1984, c. 590; 1988, c. 295.