(a) Technical data means, for purposes of this subchapter:

(1) Information, other than software as defined in § 120.10(a)(4), which is required for the design, development, production, manufacture, assembly, operation, repair, testing, maintenance or modification of defense articles. This includes information in the form of blueprints, drawings, photographs, plans, instructions or documentation.

(2) Classified information relating to defense articles and defense services;

(3) Information covered by an invention secrecy order;

(4) Software as defined in § 121.8(f) of this subchapter directly related to defense articles;

(5) This definition does not include information concerning general scientific, mathematical or engineering principles commonly taught in schools, colleges and universities or information in the public domain as defined in § 120.11. It also does not include basic marketing information on function or purpose or general system descriptions of defense articles.

(b) [Reserved]