21 CFR 211.186: Master production and control records
Requires manufacturers to prepare master production and control records for each drug product and batch size, signed by one person and independently checked by another, containing formulation, yields, packaging, labeling, and complete manufacturing and testing instructions.
Part 211, Current Good Manufacturing Practice for Finished Pharmaceuticals · Subpart J, Records and Reports
3%
of drug-manufacturing 483s since 2023 cite this section at least once
How FDA words it
The opening lines investigators use most when they cite 211.186, from the 483s we hold.
The master production and control records are deficient in that they do not include complete manufacturing control instructions.Most used
Procedures for the preparation of master production and control records are not described in a written procedure.211.186(a)
Master production and control records lack a statement of theoretical yield including the maximum and minimum percentages of theoretical yield beyond which investigation is required.211.186(b)
Cited over time
483s citing 211.186, by yearMost citations in 2019. Bars are relative to the busiest year. *2026 to date.
Years shown: 2017 to 2026. The busiest year was 2019.
Recent 483s citing 211.186
- Isorx Cyclotron Center · Lubbock, TexasPermitted variations in the amount of component necessary are not reasonable and… Mar 13, 2026
- Aurobindo Pharma Limited, Unit VII · Polepally Jedcherla Mandal, Mahabubnagar, IndiaMaster production and control records lack complete manufacturing and control… Jan 28, 2026
- Loba Feinchemie GmbH · Fischamend, AustriaThe Master Batch Record for®@ does not reflect the manufacturing process… Nov 11, 2025
- Baxter Onocology GmbH · Halle (Westf.), North Rhine-Westphalia, GermanyProcedwes for the preparation of master production and control records are not… Sep 26, 2025
- Fareva Amboise · Poce Sur Cisse, FranceProcedures for the preparation of master production and control records are not… Sep 16, 2025
The regulation text
§ 211.186 Master production and control records.
(a)To assure uniformity from batch to batch, master production and control records for each drug product, including each batch size thereof, shall be prepared, dated, and signed (full signature, handwritten) by one person and independently checked, dated, and signed by a second person. The preparation of master production and control records shall be described in a written procedure and such written procedure shall be followed.
(b)Master production and control records shall include:
(1)The name and strength of the product and a description of the dosage form;
(2)The name and weight or measure of each active ingredient per dosage unit or per unit of weight or measure of the drug product, and a statement of the total weight or measure of any dosage unit;
(3)A complete list of components designated by names or codes sufficiently specific to indicate any special quality characteristic;
(4)An accurate statement of the weight or measure of each component, using the same weight system (metric, avoirdupois, or apothecary) for each component. Reasonable variations may be permitted, however, in the amount of components necessary for the preparation in the dosage form, provided they are justified in the master production and control records;
(5)A statement concerning any calculated excess of component;
(6)A statement of theoretical weight or measure at appropriate phases of processing;
(7)A statement of theoretical yield, including the maximum and minimum percentages of theoretical yield beyond which investigation according to § 211.192 is required;
(8)A description of the drug product containers, closures, and packaging materials, including a specimen or copy of each label and all other labeling signed and dated by the person or persons responsible for approval of such labeling;
(9)Complete manufacturing and control instructions, sampling and testing procedures, specifications, special notations, and precautions to be followed.
Questions
What does 21 CFR 211.186 require?
Requires manufacturers to prepare master production and control records for each drug product and batch size, signed by one person and independently checked by another, containing formulation, yields, packaging, labeling, and complete manufacturing and testing instructions.
How often is 211.186 cited in Form 483s?
It appears in about 3% of the drug-manufacturing 483s we hold from 2023 onward.
How do FDA investigators word a 211.186 observation?
The most common opening is: “The master production and control records are deficient in that they do not include complete manufacturing control instructions.”
Which sections are cited alongside 211.186?
In the same 483s, investigators most often also cite 211.192 (Production record review), 211.22 (Responsibilities of quality control unit), 211.67 (Equipment cleaning and maintenance), 211.100 (Written procedures; deviations).