Legislatures frequently grant administrative agencies the power to issue regulations regarding the laws the legislature has passed. In essence, the legislature asks the agency to flesh out the statutes that they have passed, often because the agency has special expertise or knowledge that the legislature lacks. But an agency's rulemaking authority is not unlimited. Often the agency will be required to solicit comments from the public regarding proposed regulations. An agency's failure to provide notice and opportunity to be heard or to adequately consider the information it obtains can open the door for the rulemaking proceeding to be challenged and potentially struck down in court.