Navy creates one Seabee rating for E-9s as service aims to facilitate promotion opportunities March 10 Utilitiesman 2nd Class Matthew Konopka, Builder 1st Class Courtney Mejia and Builder 2nd Class Anthony Seaton repair drywall during a remodel of the Truman Annex entry control point facility. (Trice Denny/Navy) The Navy is creating one rating for E-9s in the Seabee community in an attempt to facilitate advancement opportunities for sailors. That means that E-9 active-duty sailors and reservists serving as constructionman master chiefs, equipmentman master chiefs and utilities constructionman master chiefs will all fall under the new, single Seabee master chief rating.