Galvanic corrosion in carbon fiber-reinforced plastic (CFRP) metal assemblies is a new and rising issue in aerospace structural design that is hindering the expansion of CFRP applications. The wide gap of galvanic potential between the metallic materials and the CFRPs cause an electrochemical reaction in the cell to occur that results in severe corrosion. Therefore, the evaluation of protection methods such as calking, inhibitor painting, and water sealants using standardized procedures is essential. Present procedures such as ISO 9227 are intended for isolated samples. As such, galvanic paired samples of CFRP-metal assemblies are beyond their scope. As a result, the authors propose a new draft of the standard test ‘ISO/CD 21746 composites and metal assemblies — galvanic corrosion tests,’ which has been approved through a committee draft (CD) vote of the ‘Technical Committee ISO/TC 61, Plastics - Subcommittee SC 13, Composites and reinforcement fibers.’ In this paper, the authors evaluate the procedures through a series of galvanic corrosion tests for CFRP-A1 bolted assemblies of Toray T800S/3900-2B composites and A1 1050P in direct contact with conductive bolts for three cases: no insulation, insulating film interface, and insulating film interface with insulated bolts. The results from the test chamber evaluations show that the proposed CD 21746 standards are excellent for evaluating galvanic corrosion and that they have user-friendly descriptions. In addition, the newly defined pure A1 reference specimens in these standards are relatively inexpensive compared to the CR4 grade steel and pure zinc specimens of the present ISO 9227 standard.