2020
NAICS Code
No change
2019
NAICS Code
No change
Added in 2018
NAICS Code
111412
111995
312310
413410
453993
Modified in 2018
NAICS Code
111999
511110
511120
511130
511140
511190
511211
511212
519130
523130
Added in 2017
NAICS Code
211110
211141
211142
512250
517310
517911
517919
532280
711214
711215
711217
711411
711412
713991
713992
713999
Deleted in 2017
NAICS Code
211113
211114
512210
512220
517111
517112
517210
532220
532230
532290
711211
711218
711410
713990