So, there is plenty out there which indicates the magical application of long hair, but no “requirements” from the wiccan standpoint. From a a legal standpoint, your employer would have a really hard argument in court to justify requiring you cut your hair, if it is kept clean and can be put up in such a way as to prevent a health hazard. One thing, you didn’t mention whether you had dreads (there is a healthy history of magical folklore around dreadlocks too). I’ve known a few dread wearers that wore them as a fashion statement but had no idea how to properly care for them or watch for problems. Dreads must be checked by a professional or someone who is knowledgeable about lice and other parasites which can cause health problems occasionally, as it is physically impossible to do this right yourself.