what i will add to this is that just like talking on the phone while driving, just because the likelihood is low that you will be caught and fined for not having a mast inspection, doesn't mean it does not make good business sense to get it done. Having your lift truck inspected and certified annually by a competent person ensures you are doing due diligence to keep your lift truck in safe operating condition to protect your investment, your workers and yourself. factor it in now as a cost of doing business so you don't end up running so lean that when you do get caught, you find yourself unable to make a profit maintaining your truck.
finding a competent person to certify your truck is akin to finding a competent mechanic to certify your personal car: there are enough class "a" mechanics working on cars who shouldnt have their license and there are some (few) without licenses who outshine their licensed competitors. if you are socially astute you should be able to pick out in quick order those mechanics who truly care about you and your business, and those who are working for the weekend. -they can talk all they want about what they know but if they stay late to get your truck back in service or show up extra early to accommodate your schedule, they have your interests in mind and that's what matters most. they don't always command top dollar either. some of the hardest working techs in my trade have been indies. just like the bargain forklifts, you have to look for them... (but i'd +or- double my purchase budget for the lowest cost over the long term...)