ATP's website has a fairly new letter of agreement with Republic. It states that applicants who have completed the Regional Jet program can apply with 500/100. It then says that all other applicants can apply with 800/250. It was shocking because Republic has always been one to be firm on their mins. I'm guessing the 800/250 mins are only for ATP pilots? I haven't heard of these mins anywhere else.
Comair's letter of agreement is comical, because it states that applicants who complete the Regional Jet program can apply with a minimum of 600 hours. I guess I better rush to this program so I can interview with a minimum of 600 hours