20 CFR § 655.7 - Persons and entities authorized to file.
(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.