Federal Signal to Host First Quarter Earnings Conference Call on May 4, 2021

b'OAK BROOK, Ill., April 20, 2021 /PRNewswire/ --Federal Signal Corporation (NYSE: FSS) (the "Company"), a leader in environmental and safety solutions, will announce first quarter earnings before the market opens on Tuesday, May 4, 2021.The Company will also host an investor conference call and webcast at 10a.m.