Taxpayer First Act of 2019 (H.R. 3151)
"The new law requires the IRS to provide helpful information to taxpayers placed on hold during a telephone call to any IRS help line, such as information about common tax scams, information on where and how to report tax scams, and additional advice on how taxpayers can protect themselves from identity theft and tax scams."
Note that nothing was done to actually reduce the amount of time spent on hold. Way to go, Congress!