This is a Total Small Business Set-Aside for a multi-discipline Architect-Engineer IDIQ contract to provide environmental investigation, permitting, and related study services at Navy and Marine Corps locations primarily in the Pacific Basin and Indian Ocean areas. The contract has a maximum value of $30,000,000, with a one-year base period and four one-year options. The estimated start date is January 2027. Key selection criteria include the professional qualifications of key personnel and specialized experience in specific environmental engineering services. All work must be performed by U.S. citizens, and the prime firm must be able to perform throughout the entire contract term.