Circular issued by International Group clubs Members are referred to the previous circular published on 24 February 2015 that informed members that non-tank vessels in transit through Western Alaska waters en-route to or from a US port are required to follow Alternative Planning Criteria (APC) in order to fulfil federal requirements. In order to meet these APC requirements members have, to date, been required to enrol with the sole provider of such services in Western Alaska, namely the Alaska Maritime Prevention and Response Network (AK-AMPRN). Members are informed that National Response Corporation (NRC) and Resolve Marine Group have now received final approval from the US Coast Guard (USCG) for their Western Alaska APC, which focuses on the northern Pacific Great Circle route for non-tank vessels transiting through the Aleutian Islands in Western Alaska. With this final approval from the USCG, NRC/Resolve is now providing non-tank vessel operators with their "1-Call Alaska" coverage for vessels transiting the Aleutian Islands Subarea of Western Alaska in compliance with OPA 90 regulations. Therefore, non-tank vessel operators now have a choice of APCs to follow for their non-tank vessels transiting Western Alaska. Availability of the 1-Call Alaska coverage Members are informed that, at present, the 1-Call Alaska cover only applies to non-tank vessels, although NRC/Resolve expects to receive final USCG approval to expand their APC coverage to tank vessels transiting the Aleutian Islands Subarea of Western Alaska in the near future. NRC's existing clients can add coverage for their non-tank vessels transiting the "Great Circle" trading route in Western Alaska by signing the 1-Call Alaska Addendum to their existing OPA 90 contracts with NRC. The 1-Call Alaska coverage is also available to members who are not currently NRC clients for OPA 90 OSRO and Dispersant compliance services and who do not need US Federal OPA 90 services, by signing the 1-Call Alaska cover