whether or not the purchaser requires a Test Certificate; and
whether or not the purchaser requires inspecting the product at the manufacturer’s works.
E.2 Recommended information to be supplied by the manufacturer or supplier
When requested by the purchaser, it is recommended that the manufacturer or the supplier supply a certificate satisfactory to the Trinidad and Tobago Bureau of Standards showing results of the tests carried out to determine compliance of the new or used tyres with its specification.
1) Department of Transport of the United States of America