ATC Occupancy Class Codes

0

300

Unknown

1

301

Permanent Dwelling

2

304

Temporary Lodging

3

305

Group Institutional Housing

4

312

Retail Trade

5

313

Wholesale Trade

6

314

Personal and Repair Services

7

315

Professional, Technical, and Business Services

8

316

Health Care Services

9

317

Entertainment and Recreation

10

318

Parking

11

322

Heavy Fabrication and Assembly

12

323

Light Fabrication and Assembly

13

324

Food and Drug Processing

14

325

Chemical Processing

15

326

Metal and Minerals Processing

16

327

High Technology

17

328

Construction

18

329

Petroleum

19

373

Agriculture

20

330

Mining

21

341

Religion and Nonprofit

22

343

Government - General Services

23

344

Emergency Response Services

24

345

Education

25

351

Highway

26

352

Railroad

27

353

Air

28

354

Sea/Water

29

361

Electrical

30

362

Water

31

363

Sanitary Sewer

32

364

Natural Gas

33

365

Telephone and Telegraph

34

371

Communication

35

372

Flood Control