107 



40 



1 costs, forest genetics costs, general administra- 



2 tive costs (including administrative costs of the 



3 national and regional offices of the Forest Serv- 



4 ice), and facilities construction costs of the Fed- 



5 eral Government directly or indirectly related to 



6 the timber harvest program conducted on Na- 



7 tional Forest System lands. 



8 "(4) Method of allocating costs. — The 



9 Secretary shall allocate the costs referred to in para- 



10 graph (3)(B) to each unit of the National Forest 



1 1 System on the basis of harvest volume. 



12 "(5) Prohibition on timber harvests on 



13 unsuitable lands. — In the case of lands identified 



14 under paragraph (1) as unsuitable for timber pro- 



15 duction, no timber harvesting shall occur on such 



16 lands for a period of 10 years or the life of the plan, 



17 whichever is greater. 



18 "(6) Definitions. — For purposes of this sub- 



19 section: 



20 "(A) The term 'standing timber' means an 



21 existing stand of timber that has not been har- 



22 vested. 



23 "(B) The term 'subsequent timber stand' 



24 means a regenerated stand of timber produced 



