Kan. Admin. Regs. § 92-19-21
(c) When a private or public elementary or secondary school, or a public or private nonprofit educational institution operates its lunch room, cafeteria, or dining room for the purpose of providing meals for its respective students or teachers, the school or institution shall not be considered to be engaged in the business of regularly selling meals or drinks to the public and shall not collect or remit tax on these sales.
When a public or private elementary or secondary school or a public or private nonprofit educational institution makes its cafeteria, lunch room, or dining room available for use by the general public, the school or institution shall be considered to be in the business of conducting a place in which meals or drinks are regularly sold to the public, and shall collect and remit the sales tax. A caterer or concessionaire operating a cafeteria, lunch or dining room on the premises of any public or private elementary or secondary school or public or private nonprofit educational institution shall collect and remit sales tax.
(d) When a public or private nonprofit hospital operates a lunch room, cafeteria, or dining room for the exclusive purpose of providing meals for its respective employees and staff the hospital shall not be considered to be engaged in conducting a place where meals or drinks are regularly sold to the public and shall not collect and remit tax on these sales.
When a public or private nonprofit hospital makes its cafeteria, lunch room, or dining room available for use by the general public, the hospital shall be considered to be in the business of conducting a place where meals or drinks are regularly sold to the public and shall collect and remit the sales tax. Caterers or concessionaires operating cafeterias, lunch, or dining rooms on the premises of any public or private nonprofit hospital shall collect and remit sales tax.
(Authorized by K.S.A. 79-3618; implementing K.S.A. 1985 Supp. 79-3602, 79-3603 as amended by L. 1986, Ch. 386, Sec. 1; effective, E-70-33, July 1, 1970; effective, E-71-8, Jan. 1, 1971; effective Jan. 1, 1972; amended May 1, 1975; amended May 1, 1987.)