Yes there are. In fact, all the schemes across the public service, including the uniformed ones, can be pegged to the MX numbering system. Within ourselves, we always fall back to this number for reference. Like, this guy is 11A, that Dir is a 9, her CEP is 7, and so on. Can even be pegged to DSP, Supt, LTC, Maj. I think it has become second nature to people in the service. haha.