4 Tex. Admin. Code § 10.49
Seed identified as Non-Generation Certified (NGC) is intended to provide limited opportunity for a applicant to produce certified stocks of cultivars for which micropropagated laboratory-tested seed sources are temporarily not available. Applicants who intend to produce NGC seed must verify to the Department prior to April 1st of any given growing season that the cultivar in question is not available from a Limited Generation seed program, and furthermore have each request reviewed and approved by the State Seed and Plant Board. However, any prospective seed lots must have been post harvest tested and meet qualifications for re-certification. NGC seed lots will be inspected and classified according to the disease tolerances and all of the applicable Rules and Regulations established for Generation 6. These stocks will be identified in the Seed Directory and when sold will be inspected for grade and properly identified with labels or bulk certificates. The symbols "NGC" shall be printed on the labels and bulk certificates to denote their status.
4 Tex. Admin. Code § 10.49