AMS5580M prohibits unauthorized exceptions (1.1, 3.4.1.5, 3.7, 4.4.1, 5.2.1, 8.5), updates composition testing (3.1, 3.1.1), updates condition and fabrication requirements including final cleaning (3.2, 3.2.3, 3.3), updates tensile testing (3.4.1.1), provides exceptions for small diameter tube testing (3.4.1.2, 8.6), updates inspection requirements (3.5), adds cleanliness check (3.5.1), allows alternate NDT inspections (3.5.2), adds NDT and country of origin (4.4), clarifies identification (5.2), updates definition (8.2), allows prior revisions (8.4), and is the result of a Five-Year Review and update of this specification.