A standard may be invalid if it was not adopted in accordance with a statutory procedural requirement. An example of this is which one of the following?
a. Failing to consult the Advisory committee on Construction Safety and Health before proposing a standard regulating construction work.
b. Failing to consult the NIOSH committee on Regulatory Advisement before proposing a standard on carcinogenic potential.
c. Failing to interact with EPA before proposing a standard that regulates hazardous waste TSD facilities.
d. Failing to consult DOT before proposing a standard regulating hazardous material transportation.