Just a couple of minor typos:
discression instead of discretion (1.1)
Aristech instead of Architect 2x (4.1.1, 4.6.1)
hid instead of his (4.1.6)
Architech instead of Architect 2x (4.2.1)
workmen's instead of workman's (4.2.2)
allocable instead of allocatable 2x (11.6.1)
Aritech instead of Architect (11.6.1)
Osha instead of OSHA (14.4)
refered instead of referred (15.1.2)
misplaced commas (11.2, 11.4)
May I recommend using spell check?

Also there seemed to a mix of shortened common words in place of using the formal word. For example using reg instead of regulation.