PART 1910âOCCUPATIONAL SAFE-
TY AND HEALTH STANDARDS
(CONTINUED)
Subpart ZâToxic and Hazardous
Substances
Sec.
1910.1000 Air contaminants.
1910.1001 Asbestos.
1910.1002 Coal tar pitch volatiles; interpre-
tation of term.
1910.1003 13 Carcinogens (4-Nitrobiphenyl,
etc.).
1910.1004 alpha-Naphthylamine.
1910.1005 [Reserved]
1910.1006 Methyl chloromethyl ether.
1910.1007 3,â²âDichlorobenzidine (and its
salts).
1910.1008 bis-Chloromethyl ether.
1910.1009 beta-Naphthylamine.
1910.1010 Benzidine.
1910.1011 4-Aminodiphenyl.
1910.1012 Ethyleneimine.
1910.1013 beta-Propiolactone.
1910.1014 2-Acetylaminofluorene.
1910.1015 4-Dimethylaminoazobenzene.
1910.1016 N-Nitrosodimethylamine.
1910.1017 Vinyl chloride.
1910.1018 Inorganic arsenic.
1910.1020 Access to employee exposure and
medical records.
1910.1025 Lead.
1910.1026 Chromium (VI).
1910.1027 Cadmium.
1910.1028 Benzene.
1910.1029 Coke oven emissions.
1910.1030 Bloodborne pathogens.
1910.1043 Cotton dust.
1910.1044 1,2-dibromo-3-chloropropane.
1910.1045 Acrylonitrile.
1910.1047 Ethylene oxide.
1910.1048 Formaldehyde.
1910.1050 Methylenedianiline.
1910.1051 1,3âButadiene.
1910.1052 Methylene Chloride.
1910.1096 Ionizing radiation.
1910.1200 Hazard communication.
1910.1201 Retention of DOT markings, plac-
ards and labels.
1910.1450 Occupational exposure to haz-
ardous chemicals in laboratories.
S
UBJECT
I
NDEX FOR
29 CFR P
ART
1910âO
CCU
-
PATIONAL
S
AFETY AND
H
EALTH
S
TAND
-
ARDS
Subpart ZâToxic and Hazardous
Substances
A
UTHORITY
: Secs. 4, 6, 8 of the Occupational
Safety and Health Act of 1970 (29 U.S.C. 653,
655, and 657); Secretary of Laborâs Order No.
12â71 (36 FR 8754), 8â76 (41 FR 25059), 9â83 (48
FR 35736), 1â90 (55 FR 9033), 6â96 (62 FR 111),
3â2000 (65 FR 50017), 5â2002 (67 FR 65008), or 5â
2007 (72 FR 31160), as applicable; and 29 CFR
part 1911.
All of subpart Z issued under section 6(b) of
the Occupational Safety and Health Act of
1970, except those substances that have expo-
sure limits listed in Tables Zâ1, Zâ2, and Zâ
3 of 29 CFR 1910.1000. The latter were issued
under section 6(a) (29 U.S.C. 655(a)).
Section 1910.1000, Tables Zâ1, Zâ2, and Zâ3
also issued under 5 U.S.C. 553, but not under
29 CFR part 1911 except for the arsenic (or-
ganic compounds), benzene, cotton dust, and
chromium (VI) listings.
Section 1910.1001 also issued under section
107 of the Contract Work Hours and Safety
Standards Act (40 U.S.C. 3704) and 5 U.S.C.
553.
Section 1910.1002 also issued under 5 U.S.C.
553, but not under 29 U.S.C. 655 or 29 CFR
part 1911.
Sections 1910.1018, 1910.1029, and 1910.1200
also issued under 29 U.S.C. 653.
Section 1910.1030 also issued under Public
Law 106â430, 114 Stat. 1901.
S
OURCE
: 39 FR 23502, June 27, 1974, unless
otherwise noted. Redesignated at 40 FR 23072,
May 28, 1975.
§ 1910.1000 Air contaminants.
An employeeâs exposure to any sub-
stance listed in Tables Zâ1, Zâ2, or Zâ3
of this section shall be limited in ac-
cordance with the requirements of the
following paragraphs of this section.
(a) Table Zâ1â(1) Substances with lim-
its preceded by ââCâââCeiling Values. An
employeeâs exposure to any substance
in Table Zâ1, the exposure limit of
which is preceded by a ââCââ, shall at no
time exceed the exposure limit given
for that substance. If instantaneous
monitoring is not feasible, then the
ceiling shall be assessed as a 15-minute
time weighted average exposure which
shall not be exceeded at any time dur-
ing the working day.
(2) Other substancesâ8-hour Time
Weighted Averages. An employeeâs expo-
sure to any substance in Table Zâ1, the
exposure limit of which is not preceded
by a ââCââ, shall not exceed the 8-hour
Time Weighted Average given for that
substance in any 8-hour work shift of a
40-hour work week.
(b) Table Zâ2. An employeeâs exposure
to any substance listed in Table Zâ2
shall not exceed the exposure limits
specified as follows:
(1) 8-hour time weighted averages. An
employeeâs exposure to any substance
listed in Table Zâ2, in any 8-hour work
7