George Brooks, printer specialist at the Coast Guard Institute, stands by the tools of his trade: the comb binding machine, wire stitch machine and perfect binding machine, Aug. 19, 2014. The Coast Guard Institute manages 48 sets of exams for 20 of the Coast Guard’s 21 enlisted rates, along with the associated study material for those exams and the Enlisted Professional Military Education requirements. Last year, they produced over 35,000 sets of exams.