Following a prehearing conference Tuesday, the Utah Public Service Commission scheduled a formal April 13 hearing to consider raising a surcharge on monthly telephone bills used to fund a relay system that aids the hearing impaired.

The hearing will begin at 9 a.m. and could be continued on April 14 if testimony warrants.The current surcharge is 3 cents per month. State law mandates provision of a relay system to aid the hearing impaired and authorizes a surcharge of up to 10 cents per month on telephone billings to finance the program.