ACATS 4.0 User's Guide
5.6.5 Withdrawn Tests
From time to time, the ACAA determines that one or
more tests included in a release of the ACATS should be withdrawn from
the test suite. Tests that are withdrawn are not processed during a conformity
assessment and are not considered when grading an implementation.
Usually, a test is withdrawn because an error has
been discovered in it. A withdrawn test will not be reissued as a modified
test, although it may be revised and reissued as a new test in the future.
Withdrawn tests are listed in the ACATS Modification
List, which is maintained by the ACAA.