[1][2] Coins that CAC deems high-end for their grades receive green stickers,[3] which usually add premiums ranging from single digit percentages to 92% or more.
[1][4][2][5][6] CAC and certain dealers buy and sell CAC-certified coins via their affiliated 180-plus-member trading network, CDN Exchange.
The firm's website maintains a free serial number verification service, which helps deter CAC sticker counterfeiting, and Population Report, which assists in determining coin rarity.
[9][10][1][11] For tiered fees, CAC examines certain numismatically valuable U.S. coins to determine their quality within their assigned grades.
The rest of the public must submit through the former, a directory of which appears on CAC's website, which also lists coins it accepts for certification.
CAC coins with special designations, such as "Full Bands" for Mercury dimes and "Deep Mirror Prooflike" for Morgan dollars, are also listed.
[11][9][15][1] In October 2022, CAC announced they would be launching their own grading service in 2023, with plans to gradually phase out their stickering operations.