Nearly a year ago we reported on some regulatory weedwhacking that pruned some (but by no means all) of the things that tower owners need to worry about when it comes to the FCC’s Antenna Structure Regulations. Most of the revised rules took effect last October. As often happens, though, a couple were left in limbo because they involved “information collections” that had to be run past the Office of Management and Budget thanks to the hilariously-named Paperwork Reduction Act. According to a notice in the Federal Register, OMB wrapped up its review on May 13 (although it took the Commission nearly seven weeks to get word of that milestone into the Register). In any event, the most recent Register notice means that the remaining rule revisions – involving Sections 17.4, 17.48 and 17.49 – are now in effect.