I once talked to a guy who got a Part 135 certificate at a Class Bravo airport.
Him: "Yeah, I got the first 135 cert in 30 years at this airport."
Me: "How'd you do that?"
Him: "Oh, I work for the federal govt."
All you need to know is that the FAA considers all operators to be the "same level of safety", whether 91, 135 or 121. Since 121 means scheduled airline, you can do the math on how much that would cost and how much paperwork is involved.
I once talked to a guy who got a Part 135 certificate at a Class Bravo airport.
Him: "Yeah, I got the first 135 cert in 30 years at this airport."
Me: "How'd you do that?"
Him: "Oh, I work for the federal govt."
All you need to know is that the FAA considers all operators to be the "same level of safety", whether 91, 135 or 121. Since 121 means scheduled airline, you can do the math on how much that would cost and how much paperwork is involved.