Formaldehyde Institute, Inc. v. Frechette

concluding that public health interest in removing hazardous urea-formaldehyde foam insulation overrides the manufacturers’ interest in integrity of contracts | upholding regulations promulgated by the Commissioner of Public Health banning the sale of UFFI and requiring its repurchase under certain circumstances | party challenging the validity of a regulation must prove in a judicial proceeding “that the regulation is illegal, arbitrary, or capricious” | "[A] properly promulgated regulation has the force of law . . . and must be accorded all the deference due to a statute" | in which Anderson was a plaintiff