So I went through this same thing back in the 70's. I was union clerical. Constantly being harassed, even though my hair only came down to about the bottom of my ears and over my collar. They wanted it above the ears and above the collar. Threatened with discharge several times. I went to the union, which absolutely refused to back me. So, finally I contacted EEOC which had to notify UPS promptly of the complaint. They backed off immediately but constantly tried to persuade me to drop the issue. I knew if I did, with the way union failed to stand up for me, the company would try to nail me on anything possible. Stood my ground. EEOC determined that if women were permitted to wear their hair anyway they wanted, men should have equal rights. Friends that I had that worked for other UPS facilities around the U.S. said that management was notified of the decision immediately across the U.S. I still have my papers from this decision. At the time they did force the women drivers to wear their hair up under their hats so they could force drivers also. But one driver I knew had hair almost half way down his back and he would wear a wig everyday without any problems. If UPS has this dress code as shown in the previous post, discriminating between sexes on how they wear and length of hair it is a violation of the agreement with EEOC. Probably wouldn't look to good in the courts with their previous agreement with the EEOC.