Certain criteria that eliminates potential employees may not be published on the CHC website because their clients (oil companies) may dictate other criteria that may be discriminatory. For example, a friend of mine had put his resume in, CHC promptly asked for his hours and a passport photo. CHC replied back to him within a week thanking him for considering CHC, but at this time he was not required. After a few emails to determine why, the simple fact came back that because my colleague was 59, he was deemed too old by the client's requirement. It is not a CHC policy, but rather a client issue. CHC complies with their client's wishes. I don't think age should have been a factor, but ultimately the insurance companies have there say. Anyway, there may be other reasons that may eliminate a pilot from flying for CHC, this is only one that I have heard of, and I can't go on record for confirming this.