Data is compiled by ADF&G using charter logbooks and creel surveys up to end of July. Based on past charter history and current year's data, ADF&G prepares harvest estimates for upcoming year. The Charter Halibut Management Committee (CHMC) meets in October to provide ADF&G with a suite of harvest measures they want analyzed that would keep projected guided angler harvest within a range of potential allocations.
The International Pacific Halibut Commission (IPHC) prepares a stock assessment using data from setline surveys, NMFS trawl surveys, commercial fishing effort, and current biological information on stock distribution, At their Interim Meeting in November they provide a harvest decision table based on preliminary catch data and harvest strategy alternatives, which include a preliminary SPR (Spawning Potential Ratio) that reflects the level of harvest intensity used in recent years.
At the December meeting of the CHMC, using the IPHC Interim harvest target ranges, the Committee recommends to the North Pacific Fishery Management Council (NPFMC), harvest measures for the upcoming season that would keep guided angler harvest within allocations that might be adopted at the January IPHC meeting.
The NPFMC at their December meeting, after taking public comments, adopts or amends the recommendations of the CHMC, which then are forwarded to the IPHC for their annual meeting.
At the annual IPHC meeting, based on the catch limits set for Alaska and the commercial/charter Catch Sharing Plan (CSP), harvest measures for guided anglers are adopted for the upcoming season.
Adopted harvest measures are sent to NMFS for rule making and after approval by the Secretary of State with the concurrence of the Secretary of Commerce, they are published in the Federal Register with NMFS annual regulations.