All persons who do not possess a valid Guam business license under Title 11, Guam Code Annotated, at the time of a contract award, and who contract with the federal government for any construction project located in Guam, shall report to DRT, on forms prescribed by the Department, its estimated gross receipts from the construction project, or any other information requested by DRT on the prescribed form, within thirty (30) days of the contract being awarded. Failure to report as provided in this Section shall result in a penalty of One Thousand Dollars ($1,000) per month, or fraction thereof, for each month that a failure to report exists; provided, that the maximum penalty allowed under this Section in the aggregate shall not be more than Six Thousand Dollars ($6,000).