VMS Help BASIC, /ANSI_STANDARD  *Conan The Librarian (sorry for the slow response - running on an old VAX)

   The /ANSI_STANDARD qualifier causes VAX BASIC  to  allow  only  statements
   valid for ANSI Minimal BASIC and to compile programs according to the ANSI
   Minimal BASIC rules.

   The format of the /ANSI_STANDARD qualifier is as follows:

      /[NO]ANSI_STANDARD

   The default is /NOANSI_STANDARD.