Specified in 4.2.1.14 in [RFC 5280]:
4.2.1.14. Inhibit anyPolicy The inhibit anyPolicy extension can be used in certificates issued to CAs. The inhibit anyPolicy extension indicates that the special anyPolicy OID, with the value { 2 5 29 32 0 }, is not considered an explicit match for other certificate policies except when it appears in an intermediate self-issued CA certificate. The value indicates the number of additional non-self-issued certificates that may appear in the path before anyPolicy is no longer permitted. For example, a value of one indicates that anyPolicy may be processed in certificates issued by the subject of this certificate, but not in additional certificates in the path. Conforming CAs MUST mark this extension as critical. id-ce-inhibitAnyPolicy OBJECT IDENTIFIER ::= { id-ce 54 } InhibitAnyPolicy ::= SkipCerts SkipCerts ::= INTEGER (0..MAX)