{"data":{"id":"us/21-cfr-212.1","jurisdiction":"us","citation":"21 CFR 212.1","heading":"What are the meanings of the technical terms used in these regulations?","body":"The following definitions apply to words and phrases as they are used in this part. Other definitions of these words may apply when they are used in other parts of this chapter.\nAcceptance criteria means numerical limits, ranges, or other criteria for tests that are used for or in making a decision to accept or reject a unit, lot, or batch of a PET drug product.\nAct means the Federal Food, Drug, and Cosmetic Act, as amended (21 U.S.C. 321 et seq.).\nActive pharmaceutical ingredient means a substance that is intended for incorporation into a finished PET drug product and is intended to furnish pharmacological activity or other direct effect in the diagnosis or monitoring of a disease or a manifestation of a disease in humans, but does not include intermediates used in the synthesis of such substance.\nBatch means a specific quantity of PET drug intended to have uniform character and quality, within specified limits, that is produced according to a single production order during the same cycle of production.\nBatch production and control record means a unique record that references an accepted master production and control record and documents specific details on production, labeling, and quality control for a single batch of a PET drug.\nComponent means any ingredient intended for use in the production of a PET drug, including any ingredients that may not appear in the final PET drug product.\nConditional final release means a final release made prior to completion of a required finished-product test because of a malfunction involving analytical equipment.\nFinal release means the authoritative decision by a responsible person in a PET production facility to permit the use of a batch of a PET drug in humans.\nInactive ingredient means any intended component of the PET drug other than the active pharmaceutical ingredient.\nIn-process material means any material fabricated, compounded, blended, or derived by chemical reaction that is produced for, and is used in, the preparation of a PET drug.\nLot means a batch, or a specifically identified portion of a batch, having uniform character and quality within specified limits. In the case of a PET drug produced by continuous process, a lot is a specifically identified amount produced in a unit of time or quantity in a manner that ensures its having uniform character and quality within specified limits.\nLot number, control number, or batch number means any distinctive combination of letters, numbers, or symbols from which the complete history of the production, processing, packing, holding, and distribution of a batch or lot of a PET drug can be determined.\nMaster production and control record means a compilation of instructions containing the procedures and specifications for the production of a PET drug.\nMaterial release means the authoritative decision by a responsible person in a PET production facility to permit the use of a component, container and closure, in-process material, packaging material, or labeling in the production of a PET drug.\nPET means positron emission tomography.\nPET drug means a radioactive drug that exhibits spontaneous disintegration of unstable nuclei by the emission of positrons and is used for providing dual photon positron emission tomographic diagnostic images. The definition includes any nonradioactive reagent, reagent kit, ingredient, nuclide generator, accelerator, target material, electronic synthesizer, or other apparatus or computer program to be used in the preparation of a PET drug. “PET drug” includes a “PET drug product” as defined in this section.\nPET drug product means a finished dosage form of a PET drug, whether or not in association with one or more other ingredients.\nPET drug production facility means a facility that is engaged in the production of a PET drug.\nProduction means the manufacturing, compounding, processing, packaging, labeling, reprocessing, repacking, relabeling, and testing of a PET drug.\nQuality assurance means a system for ensuring the quality of active ingredients, PET drugs, intermediates, components that yield an active pharmaceutical ingredient, analytical supplies, and other components, including container-closure systems and in-process materials, through procedures, tests, analytical methods, and acceptance criteria.\nReceiving facility means any hospital, institution, nuclear pharmacy, imaging facility, or other entity or part of an entity that accepts a PET drug product that has been given final release, but does not include a common or contract carrier that transports a PET drug product from a PET production facility to a receiving facility.\nSpecifications means the tests, analytical procedures, and appropriate acceptance criteria to which a PET drug, PET drug product, component, container-closure system, in-process material, or other material used in PET drug production must conform to be considered acceptable for its intended use. Conformance to specifications means that a PET drug, PET drug product, component, container-closure system, in-process material, or other material used in PET drug production, when tested according to the described analytical procedures, meets the listed acceptance criteria.\nStrength means the concentration of the active pharmaceutical ingredient (radioactivity amount per volume or weight at the time of calibration).\nSub-batch means a quantity of PET drug having uniform character and quality, within specified limits, that is produced during one succession of multiple irradiations, using a given synthesis and/or purification operation.\nVerification means confirmation that an established method, process, or system meets predetermined acceptance criteria.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER C—DRUGS: GENERAL","PART 212—CURRENT GOOD MANUFACTURING PRACTICE FOR POSITRON EMISSION TOMOGRAPHY DRUGS","Subpart A—General Provisions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"504c935d237b5953957facc4bdf454f1103c7ec9ae21f6b6f6e4cc44e9e2180f","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-211.208","next":"us/21-cfr-212.2"},"notice":"GroundRules: Original legal text. Not legal advice."}