Section 1.673 - When will the Forest Service file its modified condition?(a) Except as provided in paragraph (b) of this section, if any license party proposes an alternative to a preliminary condition or prescription under § 1.671 ,the Forest Service will do the following within 60 days after the deadline for filing comments on FERC's draft NEPA document under 18 CFR 5.25(c) :(1) Analyze under § 1.674 any alternative condition proposed under § 1.671 or 1.672 ; and(2) File with FERC: (i) Any condition the Forest Service adopts as its modified condition; and(ii) The Forest Service's analysis of the modified condition and any proposed alternative.(b) If the Forest Service needs additional time to complete the steps set forth in paragraphs (a)(1) and (2) of this section, it will so inform FERC within 60 days after the deadline for filing comments on FERC's draft NEPA document under 18 CFR 5.25(c) .