29 C.F.R. § 409.2
Annual report
Each surety company having in force any bond required by section 502 of the Labor-Management Reporting and Disclosure Act of 1959 or section 412 of the Employee Retirement Income Security Act during the fiscal year, shall file with the Office of Labor-Management Standards a report, on U.S. Department of Labor Form S-1 entitled “Surety Company Annual Report”