20 CFR § 655.7
Persons and entities authorized to file
February 18, 2021
(a) Persons authorized to file. In addition to the employer applicant, a request for an H-2B Registration or an Application for Temporary Employment Certification may be filed by an attorney or agent, as defined in §655.5.
(b) Employer's signature required. Regardless of whether the employer is represented by an attorney or agent, the employer is required to sign the H-2B Registration and Application for Temporary Employment Certification and all documentation submitted to the Department of Labor.