Congress Passed the Nursing Mothers Law in 2010,a Law That

Congress passed the Nursing Mothers Law in 2010,a law that requires employers to give nursing mothers break time and private space for pumping breast milk for their babies.On January 3,2011,the Department of Labor published proposed rules in the Federal Register.​
-Where else would the proposed regulations need to be published?

A) The only requirement is that the regulations be published in the Federal Register.
B) They must be published in any trade magazine of affected industries.
C) They must be published in the Congressional Record.
D) They must be published first in the Code of Federal Regulations.