The current version of ACUCOBOL-GT has the following restrictions with respect to the standard. Many of these will be lifted in future versions of ACUCOBOL-GT.
The Procedure Division is required.
The ENTER statement is unsupported (obsolete feature).
Only one TALLYING phrase may be specified in an INSPECT statement (Level 1
conformance).
The RERUN clause is unsupported (obsolete feature).
The COMMON clause of the PROGRAM-ID is unsupported.
Nested source programs are unsupported.