Sec. 351. Required contract provisions; minimum wages. 352. Violations. 353. Law governing authority of Secretary. 354. List of violators; prohibition of contract award to firms appearing on list; actions to recover underpayments; payment of sums recovered. 355. Exclusion of fringe benefit payments in determining overtime pay. 356. Exemptions. 357. Definitions. 358. Wage and fringe benefit determinations of Secretary.