20 CFR § 655.40 - Employer-conducted recruitment.
(a) Employer obligations. Employers must conduct recruitment of U.S. workers to ensure that there are not qualified U.S. workers who will be available for the positions listed in the Application for Temporary Employment Certification. U.S. Applicants can be rejected only for lawful job-related reasons.
(b) Employer-conducted recruitment period. Unless otherwise instructed by the CO, the employer must conduct the recruitment described in §§ 655.43 through 655.46 within 14 calendar days from the date the Notice of Acceptance is issued. All employer-conducted recruitment must be completed before the employer submits the recruitment report as required in § 655.48.
(d) Interviewing U.S. workers. Employers that wish to require interviews must conduct those interviews by phone or provide a procedure for the interviews to be conducted in the location where the worker is being recruited so that the worker incurs little or no cost. Employers cannot provide potential H-2B workers with more favorable treatment with respect to the requirement for, and conduct of, interviews.
(e) Qualified and available U.S. workers. The employer must consider all U.S. applicants for the job opportunity. The employer must accept and hire any applicants who are qualified and who will be available.