Record search on driver's licenses?

How far do they generally look back on driver's license records? I applied at Driver's Solutions and they had me pre-hired with USA truck when I spoke with a recruiter over the phone within a few hours of my online application. Their application asked me for 5 years of driving record. I am a Canadian citizen and have lived here, between Ohio and now Indiana for 5 full years, so I was able to provide that without adding my Canadian license info. I drove for 25 years in Ontario, Canada without so much as a parking ticket.
I am a permanent resident here but wonder if there could be a glitch or delay with USA truck because I am a Canadian citizen. I went through the immigration process and know how long it takes to get information from one country to another.
Thanks!!

 

Thanks for the reply..Ya..I have my green card. What I was worried about was the time factor if they should want to go back further than five years, which would be my Ontario license. I don't know how easily accessible that info is to them. I am familiar with the painfully long waiting times for immigration though. I applied for a job to drive a bakery van after just 3 years in the U.S and by the time they got back the info on my Ontario driver's record, it was like 3 months later and they finally offered me the job, but by then I already had a decent job,
I just want to get in school, get my cdl, start with USA truck training, and take my first years of lumps and bumps without delays.