This guidance is intended for applicants that are required to report annually on the status of postmarketing studies and clinical trials for human drug and biological products under section 506B of the Federal Food, Drug, and Cosmetic Act (FD&C Act) (21 U.S.C. 356b) and its implementing regulations at 21 CFR 314.81(b)(2)(vii) and 601.70. In other words, this guidance is intended for applicants that are required by statute or regulation, or that have agreed in writing, to conduct postmarketing studies or clinical trials concerning a product’s clinical safety, clinical efficacy, clinical pharmacology, and nonclinical toxicology as postmarketing requirements (PMRs) or postmarketing commitments (PMCs)