Fayyaz Ahmed Asks, “Can a manufacturer use API Monogram on company letter head or inspection certificate issued by the organization at the time of releasing acceptable material”. ATCS Reply:  Fayyaz,  API Q1 prohibits the use on the API monogram on letterhead or in any advertising, including websites without an express statement of fact describing the scope of the Licensee’s authorization which must include the organization’s API issued license number.  Please review API Q1, Annex A,