PECC. Protective eyewear certification council.
the PECC Certification Council certifies that the manufacturer has written validation from an A2LA compliant laboratory that the product meets the standard specification(s).
http://www.protecteyes.org/directory.htm
ANSI requires safety equipment to be A2LA tested to ASTM standards, and marked with specific information to certify compliance. Not one Dye or Proto lens I have seen has that information on it.
Markings are : Manufacturer ID, Test Number, Standard or High Impact Designation, Certification Marking
ANSI = American National Standards Institute
ASTM = American Society for Testing and Materials, Now an international group
ASTM standards are optional safety standards unless required by the US Department of Labor - OSHA.