9 CFR 101.7 - Seed organisms.

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§ 101.7 Seed organisms.

When used in conjunction with or in reference to seed organisms, the following shall mean:

(a) Master Seed. An organism at a specific passage level which has been selected and permanently stored by the producer from which all other seed passages are derived within permitted levels.

(b) Working Seed. An organism at a passage level between Master Seed and Production Seed.

(c) Production Seed. An organism at a specified passage level which is used without further propagation for initiating preparation of a fraction.

[49 FR 22625, May 31, 1984]

Title 9 published on 2015-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 9 CFR Part 101 after this date.

  • 2015-09-04; vol. 80 # 172 - Friday, September 4, 2015
    1. 80 FR 53475 - VSTA Records and Reports Specific to International Standards for Pharmacovigilance
      GPO FDSys XML | Text
      DEPARTMENT OF AGRICULTURE, Animal and Plant Health Inspection Service
      Proposed rule; withdrawal and reproposal.
      We will consider all comments that we receive on or before November 3, 2015.
      9 CFR Parts 101 and 116