Historical
INCITS/ISO/IEC 9899:2018 (2019)
Information technology - Programming languages - C
Specifies the form and establishes the interpretation of programs written in the C programming language. It specifies the representation of C programs; the syntax and constraints of the C language; the semantic rules for interpreting C programs; the representation of input data to be processed by C programs; the representation of output data produced by C programs; the restrictions and limits imposed by a conforming implementation of C.
InterNational Committee for Information Technology Standards [incits]