34 C.F.R. § 222.30
In addition to the terms defined in § 222.2, the following definition applies to this part:
Free public education. (1) The term means education that is provided—
(ii)
(2) For the purpose of paragraph (1)(i) of this definition, education is provided at public expense if—
(3) For the purpose of paragraph (1)(ii) of this definition, the complete elementary or secondary educational program is the program recognized by the State as meeting all requirements for elementary or secondary education for the children claimed and, except for preschool education, does not include a program that provides only—
(4) For the purpose of paragraph (1)(iii) of this definition, a tuition arrangement must—
(5) For the purpose of paragraph (1)(iv) of this definition, education provided under public supervision and direction means education that is provided—
(ii) By another educational entity, over which the applicant LEA, or other public agency, exercises authority with respect to the significant aspects of the educational program for the children claimed. The Secretary considers significant aspects of the educational program to include administrative decisions relating to teachers, instruction, and curriculum.
(Authority: 20 U.S.C. 7703, 7709, 7713(6))
[60 FR 50778, Sept. 29, 1995, as amended at 81 FR 64741, Sept. 20, 2016]