The FCC deadline on selling legacy wireless equipment is the end of September. Though you will be able to continue to use older equipment (as long as it complies with legal frequencies and power output), manufacturers will not be able to sell any components that have not been recertified by the FCC, including the components that are necessary for moving your wireless to a different frequency.

Bottom line: if you need your older Lectrosonics or Zaxcom wireless gear reblocked, make arrangements as soon as possible. 

Lectrosonics is already booked through August and they've specified that the following gear will not be able to be reblocked after September: HH, HM, UH, UM400a, and UT. Here's our guide to Lectro reblocking pricing and which frequencies need to be changed.

Zaxcom has not created a specific list, but assume reblocking any of their discontinued wireless products is subject to the same September 30th deadline. Here's our guide to Zaxcom reblocking pricing and which frequencies need to be changed.