; and (B) the effectiveness of data sharing between the Secretary and the Secretary of State. (b) Assessment Not later than four years after the date of the enactment of this Act, the Comptroller General of the United States shall submit to Congress an assessment of the effect of the amendment made by section 3(a) on the domestic workforce, including data to indicate any relationship between an increase of H–2B nonimmigrants and changes in domestic employment or earnings. 9. Rule of construction The benefits and wages provided to an H–2B nonimmigrant, the services an H–2B nonimmigrant provides to the employer, the employment opportunities afforded to an H–2B nonimmigrant by the employer, including those employment opportunities that require a United States worker or an H–2B nonimmigrant to travel or relocate in order to accept or perform employment, and other terms or conditions of the employment of an H–2B nonimmigrant provided for under this Act, or the amendments made by this Act, are not primarily for the benefit of either the H–2B nonimmigrant or the employer and are for the equal mutual benefit for the H–2B worker and the employer.