DOL guidance for advertising. The Department of Labor (DOL) Guidance for the employer to advised to place the ads. In a newspaper that no longer runs ads for three consecutive days. A labor certification must be submitted by the employer and must be certified by the Department of Labor (DOL) based on the submission that there are no U.S. workers in the geographic area of employment who are able,
willing, qualified (or equally qualified) and available to do the job, and the employment of an alien will not adversely affect the wages and working conditions of similarly employed U.S. workers. Under the law, claims in advertisements must be truthful, cannot be deceptive or unfair, and must be evidence-based. For some specialized products or services, additional rules may apply.