(a) Forest officers may sell, within their authorization, without further advertisement, at not less than appraised value, any timber previously advertised for competitive bids but not sold because of lack of bids and any timber on uncut areas included in a contract which has been terminated by abandonment, cancellation, contract period expiration, or otherwise if such timber would have been cut under the contract. This authority shall not be utilized if there is evidence of competitive interest in the product.

(b) Extraordinary conditions, as provided for in 16 U.S.C. 472a(d), are defined to include the potential harm to natural resources, including fish and wildlife, and related circumstances arising as a result of the award or release of timber sale contracts pursuant to section 2001(k) of Public Law 104-19 (109 Stat. 246). Notwithstanding the provisions of paragraph (a) of this section or any other regulation in this part, for timber sale contracts that have been or will be awarded or released pursuant to section 2001(k) of Public Law 104-19 (109 Stat. 246), the Secretary of Agriculture may allow forest officers to, without advertisement, modify those timber sale contracts by substituting timber from outside the sale area specified in the contract for timber within the timber sale contract area.

(c) Extraordinary conditions, as provided for in 16 U.S.C. 472a(d), includes those conditions under which contracts for the sale or exchange of timber or other forest products must be suspended, modified, or terminated under the terms of such contracts to prevent environmental degradation or resource damage, or as the result of administrative appeals, litigation, or court orders. Notwithstanding the provisions of paragraph (a) of this section or any other regulation in this part, when such extraordinary conditions exist on sales not addressed in paragraph (b) of this section, the Secretary of Agriculture may allow forest officers to, without advertisement, modify those contracts by substituting timber or other forest products from outside the contract area specified in the contract for timber or forest products within the area specified in the contract. When such extraordinary conditions exist, the Forest Service and the purchaser shall make good faith efforts to identify replacement timber or forest products of similar volume, quality, value, access, and topography. When replacement timber or forest products agreeable to both parties is identified, the contract will be modified to reflect the changes associated with the substitution, including a rate redetermination. Concurrently, both parties will sign an agreement waiving any future claims for damages associated with the deleted timber or forest products, except those specifically provided for under the contract up to the time of the modification. If the Forest Service and the purchaser cannot reach agreement on satisfactory replacement timber or forest products, or the proper value of such material, either party may opt to end the search. Replacement timber or forest products must come from the same National Forest as the original contract. The term National Forest in this paragraph refers to an administrative unit headed by a single Forest Supervisor. Only timber or forest products for which a decision authorizing its harvest has been made and for which any applicable appeals or objection process has been completed may be considered for replacement pursuant to this paragraph. The value of replacement timber or forest products may not exceed the value of the material it is replacing by more than $10,000, as determined by standard Forest Service appraisal methods.