Adds to the components that an agency's notice of the proposed text of a rule must include under GS 150B-21.2, to include the following, applicable only with respect to rules adopted by an agency authorized to implement and enforce state and federal environmental laws: provide citations for data used as a basis for any part of the rule, including publications, studies, white papers, or reports. Requires cited sources to be made accessible on the respective agency's website. Adds to the requirements regarding public comments on proposed rules, to require the agency to fully consider written or oral comments received during the public comment period that challenge the cited data, contending that the data is inappropriate, inaccurate, or outdated. Applies to rules proposed on or after October 1, 2021.