What is the 3% tax on? The value of the part? Like a sales tax? That would add a huge burden on any company. That $1000.00 bolt holding the toilet seat in place would now cost $1030.00 just because it was installed in Denver. Can you imagine the ridiculous tax cost if you have to do an engine swap? I guess the city is looking for some way to recoup there loss on that billion dollar baggage shredder system.