The most widely accepted international standards for the prequalification of offshore coatings are ISO 12944-9 and AMPP TM21612. The two laboratory test standards are trying to simulate the offshore service conditions, but the offshore regions around the world are in quite different environmental conditions which may be more or less severe than the laboratory test conditions. Thus, it is very likely to see poor correlation between the laboratory and the field results. However, it is essential that a reliable test standard duplicates the field major failure modes and generates a correct performance ranking among candidate coating systems. Therefore, facility owners can comfortably select proper coating systems and coating manufacturers can be guided to improve their coating formulations. Field exposure testing of three commercial coating systems applied on panels and placed in three different locations across the world was conducted. Testing of these same three commercial coating systems was also conducted in the laboratory using AMPP TM21612. Comparison testing was also done to compare the failure modes and rust creepage rates of constant salt fog testing (used in ASTM B117, and in one of the cycles in ISO 12944-9) versus wet/dry cyclic salt fog testing (used in one of the cycles in AMPP TM21612). In this paper a comparison is made between the test methods of these standards and correlation with the field test results.