Contents of the OSH Rules (Bihar)

The Occupational Safety, Health and Working Conditions (Bihar) Rules, 2026

Schedule II

Made under The Occupational Safety, Health and Working Conditions Code, 2020Notification No. 101, 30 Jun 2026

Official text

Open in the official PDF (pp. 259–273)

Tables and forms lose their layout when extracted; the PDF is the authoritative version.

[see rule 2(7)]

Sub Schedule-1

List of Hazardous Chemicals

Sl. Name of the Chemical

1. Acetone

2. Acetone Cyanohydrine

3. Acetylene Chloride

4. Acetlone (Ethyne)

5. Arcolein (2-Propenal)

6. Acrylontirle

7. Aldicarb

8. Sldrine

9. Alkyl Phthaiate

10. Allyl Alcohol Acid and Salts.

11. Allyiamine

12. AiphaNaphthylThiourea (Antu)

13. 4-Aminodiphenyl Asbestos

14. 2-Aminophenol

15. Amiton

16. Ammonia

17. Ammonium Nitrate

18. Ammonium Nitrate in Fertilizers

19. Ammonium Sulfamate

20. Anabasine

21. Aniline

22. P-Anisidine

23. Antimony & Compounds

24. Antimony Hydride (Stibine)

25. Arsenic Hydrice (Arisine)

26. Arsenic Pentoxide, Arsenic (v)

27. Arsenic Trioxide, Arsenious (III)

28. Acid and Salts.

29. Azinphos-Ethyl

30. Azinphos-Methyl

31. Barium Azide

32. Benzene

33. Benzidine

34. Benzidine Salts

35. Benzoquinone

36. Benzoyl Chloride

37. Benzoyl Peroxide

38. Benzyle Chloride

39. Benzyl Canide

40. Beryllium (Powders, Compounds)

41. Biphenyl

42. Bis (2-Chloromethyl) Ketone

43. Bis (2, 4, 6-Trinitrophenyl) Amine

44. Bis (2-Chloroethyl) Sulphide

45. Bis (Chloromethyl) Ether

46. 2, 2-Bis (Tert-Butyiperoxy) Butane

47. 1, 1 -Bis (Tert-Butypeeohy) Cyclonexane

48. Bis-1,2 (Tribromophenoxy) Ethane

49. Bisphenol

50. Boron and Compounds

51. Bromine

52. Bromine Pentafluoride

53. Bromoform

54. 1, 3-Butadiene

55. Butane

56. N-Butanethiol

57. 2-Butanone

58. Butoxy Ethanol

59. Butyl Glycidal Ether

60. Tert-ButyiPeroxacetate

61. Tert-Butyl Petroxyisobutyrate

62. Tert-Butyl Peroxyisopropyl Carbonate

63. Tert-Butyl Peroxymalte

64. Tert-Butyl Peroxypivalate

65. Butyl Vinyl Ether Acids and Salts.

66. Butyamine

67. C9-Aromatic Hydrocarbon Fraction

68. Cadmium and Compounds

69. Cadmium Oxide (Fumes)

70. Calcium Cyanide

71. Captan

72. Captofol

73. Carbaryl (Sevin)

74. Cabofuran

75. Carbon Disulphide

76. Carbon Monoxide

77. Carbon Tetrachloride

78. Carbophenothion

79. Cellulose (use in explsovies)

80. Chlorates (use in explosives)

81. Chlordane

82. Chlorfenvinphos

83. Chlorinated Benzenes

84. Chlorine

85. Chlorine Dioxide

86. Chlorine Oxide

87. Chlorine Trifluoride

88. Chlormequate Chloride

89. Chloroacetal Chloride

90. Chloroacetaldehyde

91. 2-Chloroaniline

92. 4-Chloroaniline

93. Chlorobenzene

94. Chlorodiphenyl

95. Chloroepoxypropane

96. Chloroethanol

97. ChloroethylChloroformate

98. Chlorofluorocarbons

99. Chloroform

100. 4-(Chloroformy) Morpholine

101. Chloromethane

102. Chloromethyl Ether

103. ChloronitTobenzene

104. Chloroprene

105. Chlorosulphuric Acid

106. Chloroprinitroobenzene

107. Chloroxuron

108. Chromium and Compounds

109. Coboit and Compounds

110. Copper and Compounds

111. Coumafuryl

112. Coumaphos

113. Coumatetralyl

114. Crimidine

115. Crimidine

116. Cumene

117. Cyanophos

118. Cyanotheate

119. Cyanuric Fluoride

120. Cyclehexane

121. Cyclohexanol

122. Cyclohexanone

123. Cyclphexamide

124. Cyclopentadiene

125. Cyclopentane

126. CyclotetranethylentErranitramine

127. Cyclototimethylenetrinitra

128. DDT

129. Decabromodiphenyl Oxide

130. Demeton

131. Di-Isobutyryl Peroxide

132. Di-n-Propyl Peroxydicarbonate

133. Di-sec-Butyl Peroxydicarbonate

134. Dialifos

135. Diazedinitrophenol

136. Diazomethane

137. DibenzylPeroxydicarbonate

138. Dichloroacetylene

139. O-Dichlorobenzene

140. P-Dichlorobenzene

141. Dichloroethane

142. Dischloroethyl Ether

143. 2, 4-Dichlorophenol

144. DiprophyleneGlycolmethylether

145. 2, 4 Dichlorophenoxy Acetic Acid(2,4-D)

146. 1, 2-Dichlorosalicylic Acid

147. 3, 5-Dichlorosalicylic Acid

148. Dichlorovos (DDVP)

149. Dicrotophos

150. Dieldrin

151. Diepoxybutane

152. Diethyl Peroxydicarbonate

153. Diethylene Glycol Dinitrate

154. DiethyleneTriamine

155. Diethyleneglycol Butyl 1 Ether/ Diethyleneglycol Butyl Acetate

156. Diethylenetrlamine (Deta)

157. Diglycidyl Ether

158. 2, 2-Dihydroperoxypropone

159. Disobutryl Peroxide

160. Dimefox

161. Dimethoate

162. Dimethyl Phosphoramidosyanidic Acid

163. Dimethyl Phthaiate

164. Dimethylcarbomoyl Chloride

165. Dimethylinitrosomine

166. Dinitrophenol Salts

167. Dinitrotoluene

168. Diitro-o-Cresol

169. Dioxane

170. Dioxathion

171. Dioxolane

172. Diphacinone

173. DiphosphoramieOctamethyl

174. Formaldehyde

175. Disulfoton

176. Endosulfan

177. Endrin

178. Epichlorophydrine

179. EPN

180. 1, 2-Epoxypropane

181. Ethion

182. Ethyl Carbamate

183. Ethyl Either

184. Ethyl Haxanol

185. Ethyl Mercaptan

186. Ethyl Methacrylate

187. Ethyl Nitrate

188. Ethylene

189. Ethylene Chlorophydrine

190. Ethylene Diamine

191. Ethylene Dibromide

192. Ethylene Cichloride

193. Ethylene Glycol Dinitrate

194. Ethylene Oxide

195. Ethylene Limine

196. Fluenetil

197. Pensulphothion

198. Flenetil

199. 4-Fluoro, 2-Hodroxybutyric Acid and Salts, Esters, Amides,

200. Fluoroacetic Acid and Salts, Esters, Amides

201. Fluorobutyric Acid and Salts, Esters, Amides

202. 4 Fluorochrotonic Acid and Salts, Esters, Amides

203. Glyconitrile (Hydroxyacetonitrile)

204. 1, Guanyl-4 Nitrosamiaoguanyl 1-Tetrazene

205. Heptachlor

206. HexachloroCyclopentadiene

207. HexachlorocyClohexane

208. HexachlorecyClomethane

209. 1, 2, 3, 7, 8, 9-Hexachloroda-benzyo Dioxine.

210. Hexafluopropene

211. Hexamethylphosphoramide

212. 3, 3, 6, 6, 7, 8, Hexamethyl 1, 2, 4, 5, Tetroxacy, Clononane

213. Hexamethylenediamine

214. Hexane

215. 2, 2, 4, 4, 6, 6-Hexanitrostilbene

216. Hexavalent Chromium

217. Hydrazine

218. Hydrizine Nitrate

219. Hydrochloric Acid

220. Hydrogen

221. Hydrogen Bromide (Hydrobromic Acid)

222. Hydrogen Chloride (Liquefied gas)

223. Hydrogen Cyanide

224. Hydrogen Fluoride

225. Hydrogen Scienide

226. Hydrogen Sulphide

227. Hydroquinone

228. Iodine

229. Isobenzan

230. Isodrin

231. IsophoroneDisocyanate

232 Isopropyl Eather

233. Juglone (5-Hydroxynaphthalene 1,4-Dione)

234. Lead (Inorganic fumes and dusts)

235. Lead 2, 4, 6-Trinitroreso-crinoxide (Lead Styphnate)

236. Lead Azide

237. Leptophos

238. Lindand

239. Liquefied Petroleum Gas (LPG)

240. Maleic Anhydride

241. Manganese and Compounds

242. MercaptoBenzothiazole

243. Mercury Alkyl

244. Mercury Fuslminate

245. Mercury Methyl

246. Methacrylic Anhydride

247. Methacrylonitrile

248. Methacryloyl Chloride

249. Methacryloyl Chloride

250. MethanesuphonylFluride

251. Methanethiol

252. Methoxy Ethanol (2-Methyl Cellosolve)

253. MethoxyEthylmercuric Acetate

254. Methyl Acrylate

255. Methyl Alcohol

256. Methyl Alcohol

257. Methyl Bromide (Bromomethane)

258. Methyl Chloride

259. Methyl Chloroform

260. Nitrogen Trifluoride

261 Methyl Cyclohexene

262. Methyl Ethyl Ketone Peroxide

263. Methyl Hydrazine

264. Methyl Isobutyl Ketone

265. Methyl Isobutyl Ketone Peroxide

266. Methyl Isocyanate

267. Methyl Isothiocyanate

268. Methyl Marcaptan

269. Methyl Methacryiate

270. Methyl Parathion

271. Methyl Phosphoric Dichloride

272. N-Methyl, 2, 4, 6-Tetranitroaniline

273. Methylene Chloride

274. 4,4-Methylenebis (2 Chloroaniline)

275. Methyltrihlorosilane

276. Mevinphos

277. Moiybdenum and compounds

278. N-Methyl-N, 2, 4, 6-N-Tetranitro-aniline

279. Nephtha (Coal Tar)

280. 2-Naphthylamine

281. Nickel and Compounds

282. Nickel Tetracarbonyl

283. O-Nitroaniline

284. P-Nitroaniline

285. Nitrobenzene

286. P-Nitrochlorobenzene

287. Nitrocyclohexane

288. Nitroethane

289. Nitrogen Dioxide

290 Pentachloroethane

291. Nitroglycerine

292. P-Nitrophenol

293. 1-Nitropropate

294. 2-Nitropropate

295. Nitrosodi, ethyliamine

296. Nitrololune

297. Octabromophenyl Oxide

298. Oleum

299. Oleylamine

300. oo-Diethyl S-Ethylsulphinyi methyl Phosphorothioate

301. oo-Diethyl S-EthylsulphonyImethylPhosphorothioate

302. oo-Diethyl S-EthylthiomethylPhosphorothioate

303. oo-Diethyl S-IsopropylthiomethylPhosphordithioate

304. oo-Diethyl S-PropylthiomethylPhosphorodithioate

305. Oxyamyl

306. Oxy-lisulfoton

307. Oxygen (Liquid)

308. Oxygen Difluoride

309. Ozone

310. Paraoxon (Diethyl 4-Nitrophenyl Phosphate)

311. Paraquat

312. Parathion Methyl

313. Paris Green (BisAceto Hex-a metraarsenitoterta Copper)

314. Pentaborane

315. Pentabromodiphenyl Oxide

316. Pentabromophenol

317 Pentachlorophenol

318 PentacrythrifolTetranitrate

319 Pentane

320. Peracetic Acid

321. Perchloroethylene

322. PerchloromethylMercaptan

323. 2-Pentanone, 4-Methyl

324. Penol

325. Phenyl Glycidal Ether

326. Phenylene P-Diamine

327. Phenylmercury Acetate

328. Phorate

329. Phosacetim

330. Phosacetim

331. Phosfolan

332. Phosgene (Carbonyl Chloride)

333. Phosmet

334. Phosphamiden

335. Phosphine (Hydrogen Phosphide)

336. Phosphoric Acid and Esters

337. Phosphoric Acid, BromoethylBromo (2, 2-Dimethyl Propyl) Bromoethyl Ester

338. Phosphoric Acid, BromoethylBromo (2, 2-Dimethylpropyl) Chloroethyl Ester

339. Phosphoric Acid, ChloroethyiBromo (2, 2-Dimethoxycpropyl) Chloroethyl Ester

340. Phosphorous and Compounds

341. Phostalan

342 Picric Acid (2, 4, 6-Trinitro-Phenol)

343. Pentachoro Naphthalene

344 Potassium Arsenite

345 Potassium Chlorate

346 Promurit (3, 4-Dichlorophenyl 3- Triazenethiocarboxamide)

347. 1, 3-Propanesultone

348. 1 Propen-2-Omoro 1, 3-Diol-diacetate

349. Propylene Dichloride

350. Propylene Oxide

351. Propylenelimine

352. Pyrazoxon

353. Selenium Nexmuoride

354. SemicarbazideHydrochlorde

355. Sodium Arseun

356. Sodium Azice

357. Sodium Chlorate

358. Sodium Cyanide

359. Sodium Picramate

360. Sodium Selenite

361. Styrene, 11, 2, 2-Terachloroethane

362. Sulfotep

363. Sulphur Dichloride

364. Sulphur Dioxide

365. Sulphur Trioxide

366. Sulphuric Acid .

367. Sulphoxide, 3-Chloropropyioctyl

368. Tellurium

369. Tellurium Hexafluoride

370. TEPP

371. Terbufos

372. Alpha-Terabromobisphenol

373. 2, 2, 5, 6-Tetrachloro-2, 5-Cyclohexadiene-1, 4-Dione

374. 2, 3, 7, 8-Tetrachlorodibezo-p Diosin (CDD)

375 Tetrafluoroethane

376 TetramethyleneDiulphotetramine.

377 Tetramethyl Lead

378. Tetranitromethane

380. Thallium and Compounds

381. Thionazin

382. Thionyl Chloride

383. Tirpate

384. Toluene

385. Tolune-2-4-Diisocyanate

386. 0-Toluidine

387. Toluene 2, 6-Diisocyanate

388. Trans-1, 4 Chlorobutene

389. 1-TRI, (Cyclohexyl) StannyMH 1, 2, 4 Triazole

390. 1, 2, 4 Triazole

391. 2, 5 Triamino 2, 4, 5, Trinitrobenzene.

392. 2, 4, 6-Tribromophenol

393. Trichloro Acetyl Chloride

394. Trichloro Ethane

395. TrichloroNapethalene

396. TrichloroChloromethylsilane

397. TrichloroDichlorophenylsilane

398. 1, 1-Trichloroethane

399. TrichloroethylSillane

400. Trichloroethylene

401 Trichloromethanesulphenyl

402 2, 4, 5-Trichlorophenol

403 Triethylamine

404 Triethylenemelamine

405 Trimethylchlorosilane

406 TrimethylopropanePhosphite

407 Trinitroaniline

408. 2, 4, 6 Trinitroanisole

409. Trinitrobenzene

410. Trinitrobenzoic Acid

411. 2, 4, 6-Trinitroresorcinol (Styphnic Acid)

412. Trinitrotoluene

413. Tricrthocresyl Phosphate

414. Triphenylin Chloride

415. Terpentine

416. Uranium and Compounds

417. Venadium and Compunds

418. Vinyl Chloride

419. Vinyl Fluoride Chloride

420. Warfarin

421. Xylene

422. Xylidine

423. Zinc and Compounds

424. Zironium and Compounds.

Sub-Schedule-2

Isolated storage of Installation

(a) The quantities set out below relate to each installation or group of installations belonging to

the occupier where the distance between installations is not sufficient to avoid in foreseeable

circumstances, any aggravation of major accident hazards. These quantities apply in any

case to each of the installations belonging to the same occupier where the distance between

the installations is less than 500 metres.

(b) For the purpose of determining the quantity of a hazardous chemical at an isolated storage,

account shall also be taken of any hazardous chemical which is:-

(i) in that part of any pipeline under the control of the occupier having control of the

site which is within 500 metres of that site and connected to it;

(ii) at any other site under the control of the occupier any part of the boundary of which

is within 500 metres of the said site; and

(iii) in any vehicle, vessel, aircraft or hovercraft under the control of the same occupier

which is used for storage purpose either at the site or within 500 metres of it.

But no account shall be taken of any hazardous chemical which is in a vehicle,

vessel, aircraft or hovercraft for transporting it.

Serial Quantity

Chemical or group of chemicals

no. (tonnes)

1 2 3

1. Acrylonitrile 5,000

2. Ammonia 601

3. Ammonium nitra (a) 2,500*

4. Ammonium nitrate fertilizers (b) 10,000

5. Chlorine 25

6. Flammable gases as defined in Schedule 1 paragraph (b) (i) 300

Highly flammable liquids as defined in Schedule 1, 1,00,000

7.

paragraph (b) (ii)

8. Liquid oxygen 2,000

9. Sodium chlorate 250

10. Sulphur dioxide 50

11. Sulphur trioxide 100

* Where this chemical is in a state which gives it properties capable of creating a major

accident hazard.

(a) This applies to ammonium nitrate and mixtures of ammonium nitrate where the

nitrogen content derived from the ammonium nitrate is greater than 28 percent by

weight and to adequous solutions of ammonium nitrate where the concentration of

ammonium nitrate is greater than 90 percent by weight.

(b) This applies to straight ammonium nitrate fertilizers and to compound fertilizers

where the nitrogen content derived from the ammonium nitrate is greater than 28

percent by weight (a compound fertilizer contains ammonium nitrate together with

phosphate and/or potash).

Sub-Schedule -3

(a) The quantities set out below relate to each installation or group of installations

belonging to the same occupier where the distance between the installation is not

sufficient to avoid inforeseeable circumstances, any aggravation of major accident

hazards. These quantities apply in any case to each group of installations belonging

to the same occupier where the distance between the installations is less than 500

metres.

(b) For the purpose of determining the quantity of a hazardous chemical in an industrial

installation, account shall also be taken of any hazardous chemical which is :-

(i) in that part of any pipeline under the control of the occupier having control of

the site, which is within 500 metres of that site and connected to it;

(ii) at any other site under the control of the same occupier any part of the

boundary of which is within 500 metres of the said site; and

(iii) in any vehicle, vessel, aircraft or hovercraft under the control of the same

occupier which is used for storage purpose either at the site or within 500

meters of it;

but no account shall be taken of any hazardous chemical which is in a vehicle,

vessel, aircraft or hovercraft used for transporting it.

Part-1

Named Chemicals

Serial Chemical Quantity CAS number

no.

1 2 3 4

Group-I Toxic Chemicals kg-

1. Aldicarb 100 ... 116-06-3

2. 4-Aminodipheny 1 ... 92-67-1

3. Amiton 1 ... 78-53-5

4. Anabasine 100 ... 494-52-0

5. Arsenic pentoxide, Arsenic (V) acid and salts 500 ... ...

6. Arsenic trioxide, Arsenious (III) acid and salts 100 ... ...

7. Arsine (Arsenic hydride) 10 ... 778442-1

8. Azinphos-ethyl 100 ... 2642-71-9

9. Azinphos-methyl 100 ... 86-50-0

10. Benzidine 1 ... 92-87-5

11. Benzidino salts 1 ... ...

12. Beryllium (powders, compounds) 10 ... ...

13. Bis (2-chloroethyl) sulphide 1 ... 505-60-2

14. Bis (chloromethyl) ether 1 ... 542-88-1

15. Carbofuran 160 ... 1563-66-2

16. Carbophenothion 160 ... 786-19-6

17. Chlorofenvinphos 100 ... 470-90-6

18. 4-(Chloroformy) morpholire 1 ... 15159-10-7

19. Chloromethyl methyl ether 1 ... 107-30-2

20. Cobit metal, oxide, Carbonates sulphides, as powders 1t ... ...

21. Crimidme 100 ... 535-89-7

22. Cyanthoate 100 ... 3734-95-0

23. Cycloheximide 100 ... 66-81-9

24. Demeton 100 ... 8065-48-3

25. Dialifos 100 ... 10311-84-9

26. Co-Diethyl S-enthlsulphinyl methyl phoshorothiate 100 ... 2588-06-8

27. oc-Diethyl S-ethylsulphonyl, Methyl 100 ... 2588-06-9

28. Phosphorothioate Diethyl 100 ... 2600-69-3

29. S-othylthiomelhyl, phosphorothioateoc-Diethyl S- 100 ... 78-52-4

isoprophithio-methyl

30. phosphorodihioateoc-Diethyl 100 ... 3309-68-0

Serial Chemical Quantity CAS number

no.

1 2 3 4

31. S-prophlthiomethylphosphorothioateDimefox 100 ... 115-26-4

32. Dimethylcarbamoyl chloride 1 ... 70-44-7

33. Dimethylcarbamoyl 1 ... 62-75-9

34. Dimethylphosphoramidocyanidic acid 1 ... 63917-41-9

35. Diphacinone 100 ... 82-66-6

36. Disulfoton 100 ... 298-04-4

37. EPN 100 ... 2104-64-5

38. Ethion 100 ... 563-12-2

39. Fensulfothion 100 ... 115-90-2

40. Flueretil 100 ... 4301-50-2

41. Fluoroacetic acid 100 ... 144-94-0

42. Fluoroacetic acid esters 1 ... ...

43. Ditto 1 ... ...

44. Fluoroacetic acid amides 1 ... ...

45. 4-Fluorobutyric acid 1 ... 462.23-7

46. 4-Fluorobutyric acid salts 1 ... ...

47. 4-Fluorobutyric esters 1 ... ...

48. 4-Fluorobutyric acid amides 1 ... ...

49. Fluorocrotonic acid 1 ... 37759.72-1

50. Ditto 1 ... ...

51. Ditto 1 ... ...

52. 4.4 Fluorocrotnic acid, amides 1 ... ...

53. Fluoro-2-bydroxy butyric acid 1 ... ...

54. 4-Fluoro-2-hydroxy butyric acid, salts 1 ... ...

55. 4-Fluoro-2-hydroxy butyric acid esters. 1 ... ...

56. 4-Fluoro-2-hydroxy butyric acid, amides. 1 ... ...

57. Glycolonitrile (hydroxyacetonitrile.) 100 ... 107-16-4

58. 1, 2, 3, 7, 8, 9-Hexachlorodibonzo p-dioxin. 100 ... 19408-74-3

59. Hexamethylpho-sphoramide 11 ... 680-31-9

60. Hydrogesselexide 10 ... 7783-07-5

61. Isodrin 100 ... 297-78-9

62. Isodrin 100 ... 465-73-6

63. Juglone (5-Hydroxynaphthalene-1, 4-dione.) 100 ... 481-39-0

64. 4,4-Methylenebis (2-chloroaniline). 1 ... 101.14.0

65. Methyl isocyanate 150 150 kg. 624-83-9

66. Mevinphos 100 ... 7786-34-3

67. 2-Naphthyl lamine 1 ... 91-59-3

68. Nickel metal, oxides, carbonates sulphide, as powders. 1t ... ...

69. Nickel tetracarbonyl 10 ... 13463-39-3

70. Oxydiiulfolton 100 ... 13463-39-3

71. Oxygen diffueride 10 ... 7783-41-7

Seria l Chemical Quantity CAS number

no.

1 2 3 4

72. Paraoxon (diethyl 4-nitrophenyl phosphate) 100 ... 311-45.5

73. Parathion 100 ... 56-38-2

74. Parathion-methyl 100 ... 298.000.0

75. Pentaborane 100 ... 19624.22-7

76. Phoratel 100 ... 298.02-2

77. Parathion 100 ... 56-38-2

78. Phosgene (carbonyl chloride) 750 75 ½ kg 75-44.5

79. Phosphamidon 100 ... 13171-21.6

80. Phosphine (Hydrogen phosphide) 100 ... 7803-51.2

81. Promurit (1 -(3, 4-Dichlorophenyl)-3-triazenethio 100 ... 5836-73-7

carboxamide).

82. 1, 3 Propanesultone 1 ... 1120-71-4

83. 1 -Propen-2-chloro-1, 3-diol discetate) 10 ... 10118-72-6

84. Pyrazoxon 100 ... 108-34.9

85. Selenium hexafluoride 10 ... 7783-79-1

86. Sodium selenite. 100 ... 10102-18.8

87. Stibine (Antimony hydride) 100 ... 7803-52-3

88. Sulfotop 100 ... 3689-24.5

89. Sulphur dichloride 1t ... 10545-99.0

90. Telurium hexafluoride 100 ... 7783-80-4

91. TEPP 100 ... 107-49.3

92. 2, 3, 7, 8 Tetrachlorodibenze-P-dioxin (TCDD) 1 ... 1746-01.6

93. Tetramethylendiscul-phetetramine 1 ... 80-12.6

94. Thionazin 100 ... 297-97-2

95. Tripate (2, 4-Dimethyl-1, 3-dithio-lane-2- 100 ... 26419-73-8

carboxaldehyde 0- methyl-carbemeylexime).

96. Trichleremethanesulphenyl chloride. 100 ... 194-42-3

97. 1-Tri (cyclehexyl) stannyl 1-1 -H 1, 2, 4-triazele. 100 ... 41083-11-8

98. Triethylenemelamine 10 ... 51-18.3

99. Warfarin 100 ... 81-81-2

Group 2 Toxic Chemicals (Quantity-1 tonne)

100. Acetone cyanehydrin 200t ... 75-86-5

101. Acrelein (8-Propenal) 20t ... 107-02-8

102. Acrylonitrile 20t 200t 107-13-1

103. Alyalcohal (2-propen-1-01) 200t ... 107-13-1

104. Allylamine 200t ... 107-11-9

105. Ammonia 50t 500t 7664-41-7

106. Bromine 40t ... 7726-95-6

107. Carbon disulphide 20t 200t 75-15-0

108. Chlorine 10t 25t 7782-50-5

109. Diphyenl methane di-isocya-nate (MDI) 20t ... 101-68-8

110. Ethylene dibremide (1, 2-Dibromo-methane). 5t ... 106-93 4

Serial Chemical Quantity CAS number

no.

1 2 3 4

111. Ethyleneimine 50t ... 151-56-4

112. Formaldehyde (concentration 9%) 5t ... 50.00.0

113. Hydrogen cyanide (liquefied gas) 25t 250t 7647-01.0

114. Hydrogen cyanide 5t 20t 74-91.8

115. Hydrogen flouride 5t 50t 7664-39.3

116. Hydrogen flouride 5t 50t 7783-06.4

117. Methyl bromide (Bromomethane) 20t 74-83.9

118. Nitrogenoxides 50t ... 11104-93-1

119. Prophleneimine 50t ... 75-55-8

120. Sulphur dioxide 20t 250t 7446-09-5

121. Sulphur trioxide 15t 75t 746-11-9

122. Tetramethyl lead 5t ... 75-74-1

123. Tetraethyl lead 5t ... 75-74-1

124. Toluene di-isocyanate (TDI) 10t ... 584-84-9

Group 3- Highly reactive chemicals

125. Acetylene (ethyne) 5t ... 74-86-2

126. Ammonium nitrate (1) 350t 250t 6484-52-2

127. 1,2Bis (tert-butyl-peroxycycloh-exane) cyclohexane 5t ... 3006-86-8

(concentration-80%)

128. 1, 1 -Bis (tert-butyl-peroxy) cyclohexane 5t ... 3006-86-8

(concentration-80%)

129. Tert-Butyl peroxyacetate (concentration-70%) 5t ... 107-71-1

130. Tert-Butyl peroxyisobyrate (concentration-80%) 5t ... 109-13-7

131. Tert-Butyl peroxy-isoprophyl carbonate (concentration- 5t ... 2372.21-6

80%)

132. Tert-Butyl peroxy-maleate (concentration-80%) 5t ... 1931-62.0

133. Tert-Butyl peroxypivalate (concentration-77%) 50t ... 927-07.1

134. Dibenzylperodicarbonate (concentration-90%) 5t ... 2144-45.8

135. Di-sec-butyl peroxydicarbonate (concentration-80%) 5t ... 19910-65.7

136. Diethyl peroxydicarbonate (concentration-30%) 50t ... 14666-78-5

137. 2, 2-Dihydreperoxyprepane (concentration-30%) 5t ... 2614-76.8

138. Di-isobutrylparoxide (concentration-50%) 50t ... 3437-84-1

139. Di-n-propyl perpoxydicarbonate (concentration-80%) 5t ... 16066-38-9

140. Ethylene oxide 5t 50t 75-21-8

141. Ethyl nitrate 50t ... 625-58-1

142. 3, 3, 6, 6, 9, 9-Hexamethyl-1, 2, 4, 5-tetroxacy clonance 50t ... 22397-33-7

(concentration-75%)

143. Hydrogen 2t 50t 1333-74-0

144. Liquid oxygen 200t ... 7782-44-7

145. Methylethyl ketone peroxide (concentration-60%) 5t ... 1338-23.4

146. Methylisobutyl ketone peroxide (concentration-60%) 50t ... 37206-20.5

147. Peracetic acid (concentration-60%) 50 ... 79-213

Seria l Chemical Quantity CAS number

no.

1 2 3 4

148. Propylene oxide 5t ... 75-56-9

149. Sodium chlorate 251 ... 7775-09-9

Group 4-Explosive Chemicals

150. Barium azide 50t ... 18810-58-7

151. Bis (2, 4, 6-trinito phenyl) amine 50 ... 131-73-7

152. Chloetetrinitrobenzene 50t ... 28260-61-9

153. Cellulose nitrate (Containing 12.9% nitrogen) 50t ... 9004-70-0

154. Cycletetramethyieneteranitramine 50t ... 2691-41-0

155. Cyclotrimethylenetrinitroamine 50t ... 121-82-4

156. Diazodinitrophenel 10t ... 7008-81-3

157. Diethyleneglyceldinitrate 10t ... 693-21-0

158. Dinitrophenel, salts 50t ...

159. Ethylene glyceldinitrate 10t ... 628-96-6

160. 1 -Guanyl-4-nitrosamineoguanyl 1 -tetrazene 10t ... 109-27-3

161. 2, 2, 14, 4, 6, 6-Hexanitrostilbeneo 50 ... 20062-22-0

162. Hydrazine nitrate 50t ... 13464-97-6

163. Lead azide 50t ... 13424-46-9

164. Lead styphnate (lead 2, 4, 6-trinitro-resorcinexide). 50t ... 15245-44-0

165. Mercury Fulminate 10t ... 628-86-4

166. N-Methyl-N, 2, 6-tetranitroaniline 50t ... 479.45-8

167. Nitrogylcerine 10t 10t 55-63-0

168. Pentacrylhritoltetranitrate 50t ... 78-11-5

169. Picric acid (2, 4, 6-Trinitrophenol) 50t ... 81-89-1

170. Sodium kpicramate 50t ... 831-52-7

171. Styphnic acid (2, 4, 6-Trinitroreser-cinol). 50t ... 82-71-3

172. 1, 3, 5-Triamino-2, 4, 6-trinitrobenzene 50t ... 3058-38-6

173. Trinitroaniline 50t ... 26952-42-1

174. 2, 4, 6-Trinitroanisole 50t ... 606-35-9

175. Trinitrobenzene 50t ... 25377-32-6

176. Trinitrobenzoic acid 50t ... 35860-50-5

177. Trinitrocresol 50t ... 28905-71-7

178. 2, 4, 6, Trinitrophenetole 50t ... 4732-14-3

179. 2, 4, 6 Trinitrotoulene 50t 50t 118-96-7

Source: The Occupational Safety, Health and Working Conditions (Bihar) Rules, 2026, Notification No. 101 — Bihar Gazette Extraordinary No. 699, 1 July 2026, pp. 259–273 of the PDF. Open our copy at p. 259 · official download · all sources