Which of the following is correct about ISO $14001?$

A$.$ ISO $14001$ certifies that the local government has inspected the firm's environmental practices and found it to be in compliance with local regulations. personnel to oversee those programs

C$.$ ISO $14001$ certifies that the firm produces an environmentally friendly product or service

D$.$ ISO $14001$ certification guarantees that a firm is in compliance with all relevant environmental regulations.