GB/T 30790.8-2014 "Paints and varnishes – Corrosion protection of steel structures by protective paint systems – Part 8: Development of specifications for new work and maintenance" specifies the requirements for developing technical specifications for corrosion protection paint systems on steel structures in both new construction and maintenance contexts. The standard clarifies key elements that should be included in the specifications, such as environmental classification, surface preparation, selection of paint systems, construction requirements, and quality acceptance. It stipulates that these elements must be developed in accordance with relevant technical parameters and test methods for coating performance testing instruments. This provides comprehensive technical guidance for the planning, construction, and maintenance phases of corrosion protection projects for steel structures.