The OHTA international training process offers several affordable ways to access self-directed, asynchronous, online learning. This is a good choice for people who want to study independently at their own pace.

These courses have been developed by partner organizations in collaboration with OHTA.

Explanation of Course Codes

Course CodeCourse TitleLevel
SHASilica Hazard AwarenessAwareness
OHTA201Basic Principles in Occupational HygieneFoundation
OHTA501Measurement of Hazardous SubstancesIntermediate
OHTA502Thermal EnvironmentIntermediate
OHTA503Noise - Measurement and its EffectsIntermediate
OHTA504Asbestos and Other FibresIntermediate
OHTA505Control of Hazardous SubstancesIntermediate
OHTA506Ergonomic EssentialsIntermediate
OHTA507Health Effects of Hazardous SubstancesIntermediate
OHTA1001OH/IH in Mining and Mineral Processing IndustriesSpecialist

Company / CoursesLanguage(s)Operating In
Nayati InternationalOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Indiahttps://www.nayati.orgHyderabadlalitha@nayati.org270
New Zealand Occupational Hygiene SocietyOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, New Zealandhttps://www.nzohs.org.nzPO Box 3810 Richmond, Nelson 7050 New Zealandadmin@nzohs.org.nz272
GCG Health, Safety and HygieneOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA507EnglishAustraliahttps://ohtatraining.orgOHTA, Blackburn House, Redhouse Road, Bathgate, West Lothian, EH47 7AQtshub@gcg.net.au238
Centre for Labour and Social Security Training and Research (CASGEM)OHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, TurkishAzerbaijan, Kazakhstan, Turkey, Uzbekistanhttps://www.casgem.gov.trYunus Emre Mah, Kubra Sok No: 1 06145 Pursaklar Ankara, Turkiyesevaleroglu@gmail.com231
American Industrial Hygiene AssociationOHTA201EnglishUnited Stateshttps://www.aiha.org/education/eLearning/Pages/Basic-Principles-of-Occupational-Hygiene.aspx3141 Fairview Park Drive, Suite 777 Falls Church, VA 22042, USAaorlova@aiha.org222
Australian Institute of Occupational HygienistsOHTA201EnglishLive Online, Australiahttps://aioh.org.auSuite 11, 99-101 Western Avenue Westmeadows VIC 3043 POBOX 2124, Gladstone Park Vic 3049admin@aioh.org.au160
Blugrey Occupational Hygiene Consultants Pty LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishBotswana, Lesotho, Namibia, South Africa, Swazilandhttps://blugrey.co.za67 Milkyway, Lower Signal Hill, Newcastle 2956, South Africathobekad@blugrey.co.za226
BP plcOHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishAlgeria, Angola, Egypt, Iraq, Mauritania, Oman, Senegal, United Arab Emirates, United Kingdomhttps://bp.comSafety and Operations, Building B, BP Sunbury, Chertsey Road, Sunbury upon Thames, Middlesex, TW16 7LN United Kingdomjohn.dobbie@uk.bp.com230
Coal ServicesOHTA201EnglishAustraliahttps://www.coalservices.com.au558 - 580 Princes Hwy, Woonona, 2517, Australiakerrie.burton@coalservices.com.au232
Colombian Society of Occupational HygienistsOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507, SHAEnglish, SpanishColombia, Ecuador, Peruhttps://www.scho.org.coAK 7 No 156-68 of 2601-2602alvaro.araque@crpohs.com.co233
Eduardo ShawOHTA201, OHTA501, OHTA502, OHTA503, OHTA506, OHTA507English, SpanishColombia, Panama, United Stateshttps://www.ohlearning.comEduardo Shaw/GTSPTY# 5521-593, 8610 NW 72 Street, Miami, FL 33195, USAeduardoshaw@yahoo.com235
Eva and Associates Pty LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, SpanishAustralia, Indonesia, Malaysia, New Zealand, Singapore, Thailand, Vietnamhttps://www.evaandassociates.com.au67 Atherton Road, Oakleigh, 3166 VIC, Australiainfo@evaandassociates.com.au237
Global Occupational Hygiene Consultancy and Training Services Ltd.OHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA506, OHTA507EnglishTrinidad and Tobago7 Avicennia Avenue, Pond Road, Aripero, Trinidad and Tobagoglobalohservices@gmail.com240
HaS ExpertiseOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507, SHAEnglishAustralia, Indonesia, New Zealandhttp://has-expertise.co.nz/occupational-hygiene9 Raewyn Place, Pakuranga, Auckland 2010suzanne@has-expertise.co.nz244
Helix Occupational HealthOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishAustralia, Kuwait, United Arab Emirateshttps://ohtatraining.org/24 Ranford Loop, Kardinya, WA 6163, Australiaowen.boscheinen@gmail.com248
Hibbs and Associates Pty LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA507EnglishAustralia, Malaysia, New Zealand, Singaporehttps://www.hibbs.com.au255 Rawson Street Auburn, NSW 2144 Australiainfo@hibbs.com.au249
IC Firth OHS SolutionsOHTA201, OHTA501, OHTA502, OHTA503, OHTA507EnglishAustralia, Kazakhstanhttps://www.ohlearning.com14 Darkan Court, Eltham, Victoria, 3095, Australiaian.firth55@gmail.com251
iCapacity Resource LimitedOHTA201, OHTA501, OHTA503, OHTA505, OHTA506, OHTA507English, FrenchBurkina Faso, Cote D'Ivoire, Ghanahttps://www.icapacityresource.com19 Kofi Annan Street, Airport Residential Area, Accra, Ghanab.antwi@icapacityresource.com252
IEH (Institute of Ergonomics and Hygiene) Pte LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Brunei Darussalam, Hong Kong, Singaporehttps://ieh.sg/2 Leng Kee Road #03-10 Thye Hong Centre Singapore 159086training@ieh.sg253
Indorama Ventures PCLOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishNetherlands, Thailand, United Stateshttps://www.indoramaventures.com/en/home75/102 Ocean Tower 2, 37th Floor, Sukhumvit Soi 19, Bangkok 10110 ThailandSamantha.c@indorama.net255
International Safety Systems IncOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, French, Mandarin, Portuguese, SpanishLive Online, China, France, India, Ireland, Singapore, United Kingdom, United Stateshttps://www.issehs.comPo Box 475 Washingtonville, NY 10992 USAmaharshi.mehta@issehs.com256
IOH SolutionsOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishMalawi, Mozambique, South Africa, Tanzania, United Republic Ofhttps://www.iohsolutions.com/training-courses/Innovative Occupational Hygiene Solutions 36/2 Shumann Street, Melodie, Hartbeesport South AfricaInfo@iohsolutions.com257
Kenbridge Industrial Consulting LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Kuwait, Nigeria, Oman, Qatar, United Arab Emirateshttps://kenbridgegroup.comNumber 45, Enugu Street, Off Old Aba Road, Port Harcourt, Nigeriakenbridge.industrial@gmail.com260
Koolebale Industrial Hygiene Services Pty LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507, SHAEnglishBotswana, Lesotho, South Africa, Switzerland4954 Unit 13 Motlhotlho Cul, Mmabatho, South AfricaKoolebaleihs@hotmail.com261
Malaysian Industrial Hygiene AssociationOHTA201, OHTA501, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Malaysiahttps://miha2u.orgNo. 19A, 1st Floor, Jalan 2/14, Bandar Baru, Selayang, 68100 Batu Caves, Selangor Darul Ehsanliyana.miha@gmail.com264
Mongolian National Association of Occupational HygienistsOHTA201, OHTA501, OHTA502, OHTA503, OHTA506, OHTA507English, MongolianMongoliahttps://ohtatraining.org/Suite # 607, UB Platinum Building, 4-r khoroo, Bayangol District, Ulaanbaatar 16052, Mongoliandamiran@gmail.com266
Monitor Consulting Services Pty LtdOHTA201, OHTA502, OHTA505, OHTA1001EnglishLive Online, Australia, New Zealand, Papua New Guineahttps://www.monitorcs.com.au24 Havana Street, Ashgrove, QLD 4060, Australiardicorleto@monitorcs.com.au267
National Institute for Occupational HealthOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishAngola, Botswana, Congo, The Democratic Republic Of, Lesotho, Madagascar, Malawi, Mauritius, Mozambique, Namibia, Seychelles, South Africa, Swaziland, Tanzania, United Republic Of, Zambia, Zimbabwehttps://www.nioh.ac.za/25 Hospital Street, Constitution Hill, Johannesburg, 2001, South AfricaJeannethM@nioh.ac.za269
New Wave Occupational Health & Safety ServicesOHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA507EnglishLive Online, Canadahttps://Newwaveohs.com6 Mountain Ash Court, Dartmouth, Nova Scotia, Canada B2Y4J8stewartssampson@gmail.com271
Nexam Pty LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Onlinehttps://www.nexam.co.zaUnit 22, 9 Aurora Drive, Umhlanga, South Africanaadiya@nexam.co.za273
Q Safe for Technical and Professional Training WLLOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishKuwait, Qatar, United Arab Emirateshttps://qsafe.com.qa/Bldg. 109, Al Salam St. 830, Zone 42, Al-Hilal, Doha-Qatargloria@qsafeqatar.onmicrosoft.com278
RECOH EHS Services LLPOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishIndiahttps://www.recohehs.com/B302, 3rd Floor, Abhipushpam, 7/8 Anandvan Society, Near Navyug English school, New Sama, Vadodara -390024 Gujarat, Indiashrenik.ranpura@recohehs.com279
Rio TintoOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507, OHTA1001, SHAEnglish, FrenchGuinea, Madagascar, Mongoliahttps://www.riotinto.com400-1190 Avenue des Canadiens-de-Montréal, Montréal, Québec, H3B 0E3, Canadastephane.archambault@riotinto.com280
Risk MarckerOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, FrenchCanada, France, Madagascarhttps://www.riskmarcker.ca206-175 Main Street, Dartmouth, NS, Canada, B2X 1S1malavoie@riskmarcker.ca281
Robson EnvironmentalOHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishAustralia, Indonesia, Malaysia, New Zealand, Papua New Guineahttps://www.robsonenviro.com.au140 Gladstone St, Fyshwick, ACT 2609, Australia PO Box 112, Fyshwick, ACT, 2609, AustraliaLarissa@robsonenviro.com.au282
SABICOHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA506, OHTA507EnglishNetherlands, Saudi Arabia, United Stateshttps://www.sabic.com417 15th Street, Bellingham, WA 98225, USAmatthew.mcguire@sabic.com283
SafetechOHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA506, OHTA507EnglishSouth Africahttps://www.safetech.co.za64 Worraker Street, Newton Park, Port Elizabeth, 6045info@safetech.co.za285
Sedulitas CCOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, Portuguese, SpanishLive Online, Botswana, Ghana, Mozambique, Namibia, Nigeria, South Africa, Tanzania, United Republic Of, Zambia, Zimbabwehttps://www.sedulitas.co.za27 St Andrews Way, Mzingazi Golf Estate, Meer En See, Richards Bay 3901, South Africainfo@sedulitas.co.za286
SGSOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, China, India, Singapore, Thailand, Vietnamhttps://www.sgs.comKahkuan.how@sgs.com287
Sustainable EHS LLPOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, HindiLive Online, India, Kenya, Kuwait, Qatar, United Arab Emirateshttps://sustainableehs.com310-312, EXCELUS, Near Bright Day School, Vasna Bhayli Road, Vadodara, GUJARAT INDIA 391410training@sustainableehs.com288
T. Harris Environmental Management IncOHTA201, OHTA501EnglishLive Online, Canadahttps://www.tharris.ca93 Skyway Avenue, Suite 101 Toronto, Ontario Canada M9W 6N6rquenneville@tharris.ca289
TOXPro SAOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, FrenchFrance, Saudi Arabia, Switzerland, United Arab Emirateshttps://www.toxpro.ch/9 bis rue de Veyrier, 1227 Carouge, Switzerlandcontact@toxpro.ch291
University of QueenslandOHTA201, OHTA501, OHTA502, OHTA503, OHTA506, OHTA507EnglishAustraliahttps://sees.uq.edu.au/study/occupational-health-and-safetySchool of Earth and Environmental Sciences, The University of Queensland, St Lucia, Qld 4072, Australiak.johnstone2@uq.edu.au292
University of WollongongOHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506EnglishAustraliahttps://socialsciences.uow.edu.au/has/UOW199135.htmlSchool of Health Sciences, University of Wollongong, NSW, 2522, Australiajane_whitelaw@uow.edu.au293
Vietnamese Industrial Hygiene AssociationOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishCambodia, Thailand, Vietnamhttps://www.viha.org.vn38 Truong Quoc Dung ward 8, Phu Nhuan district, Ho Chi Minh City, Vietnamtuancihcsp@gmail.com295
Workplace Health Without BordersOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, French, Portuguese, VietnameseLive Onlinehttps://www.whwb.org6130 Tomken Road Mississauga ON Canada L5T 1X7whwbtutors@gmail.com298
Hygienics LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Egypt, Iraq, Mauritania, Saudi Arabia, United Kingdomhttps://www.hygienicstraining.comAdelphi Mill, Bollington, Cheshire, SK10 5JB, UKadmin@hygienicstraining.com250
Belgian Center for Occupational Hygiene VZW (BeCOH VZW)OHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA507, OHTA1001, SHADutch, EnglishLive Online, Belgium, Congo, The Democratic Republic Of, Egypt, Netherlands, Qatar, Tanzania, United Republic Of, Turkey, United Arab Emirates, Zambiahttps://www.becoh.be/nl/Brusselsesteenweg 46 3000 Leuven BELGIUMsteven@becoh.be3358
Turkiye Industrial Toxicology and Occupational Hygiene Association (ETOK-IHIDER)OHTA201, OHTA501, OHTA507English, TurkishTurkeyhttps://www.etok-ihider.orgUğur Mumcu Cad. 8/B, Çankaya-Ankara Türkiyesbiritas@gmail.com4190
Perejyd Global Services LLC (PGS Groups)OHTA201, OHTA501EnglishLive Online, United Stateshttps://perejydglobal.com/29826 Norwood Canyon Lane, Katy, Texas 77423, United Statesinfo@perejydglobal.com6204
Kevin Hedges & Assoc. Occupational Hygiene Risk ControlOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Australia, Canada117 Frank St. Ottawa ON K2PX0X3, CANADAkevinhedges.kh@gmail.com6296
POLTECH Pty LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishSouth Africahttps://www.poltech.co.za114 Willem Botha Avenue, Eldoraigne Ext 6, Centurion 0159 P O Box 7211, Centurion 0046adelev@poltech.co.za276
Red OHMS TrainingOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Australiahttps://www.redohmsgroup.com.au/training9 Richardson Street, West Perth, Western Australia, 6005samantha.brice-spratley@redohmsgroup.com.au275
Gradi Health and Safety LimitedOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Canada, NigeriaGradi Health and Safety Limited No. 8, Akin Leigh Cresent, Lekki, Lagos, Nigeriamatthew@gradihs.com6372
Global Occupational Hygiene TrainingOHTA201, OHTA501, OHTA502, OHTA503, OHTA505English, SpanishLive Online, Peruhttp://www.gohtraining.comEnrique Meiggs 185, Miraflores – Lima, Perú.jason.porras@gohtraining.com6391
JAB International ConsultancyOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507Arabic, EnglishLive Onlinehttp://www.jabconsultancyqatar.comFlr 2, Bldg. No. 83 Barwa Tower 2, Suhaim Bin Hamad St. 231, C-Ring Road, Zone 38 Al Sadd, Doha, Qatar rajos@jabconsultancyqatar.com6392
RAQI Gulf Training CenterOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Saudi Arabiahttp://www.raqi.com.saYanbu Royal commission, Postal Code 41912info@raqi.com.sa6397
Association of Industrial Hygienists NigeriaOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishLive Online, Nigeriahttp://www.aihn.orgNo. 3, Grace Ntuko Street, Greenland Estate, Lagos, Nigeriamatthewolota@gmail.com6398
Indonesian Industrial Hygiene AssociationOHTA201, OHTA501, OHTA502, OHTA503, OHTA506, OHTA507IndonesianLive Online, Indonesiahttps://www.ohlearning.comDepartment of Occupational Health and Safety, C Building, 1st Floor, Faculty of Public Health, Universitas Indonesia, Depok, Jawa Barat, Indonesiaemail.iiha@gmail.com254
EHS LYNX AFRIK.OHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, FrenchLive Online, Benin, Burkina Faso, Cote D'Ivoire, Mali, Niger, Republic of Guinea, Senegal, Togohttp://www.ehslynxafrik.comOuagadougou Burkina Faso West Africainfo@ehslynx.com6938
Crowder ConstructionOHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA507EnglishLive Online, United Stateshttps://www.crowderusa.com/6425 Brookshire Boulevard Charlotte NC 28216DLogie@crowderusa.com6940
Workplace Health Without Borders – USOHTA201, OHTA501EnglishLive Online, Ethiopia, Vietnamhttp://www.whwb-usa.org1100 N Main St Ann Arbor MI 48104atientienalbert@outlook.com6941
PT Ekakarsa Advisindo Sukses (EASindo)OHTA201, OHTA501, OHTA503, OHTA506English, IndonesianLive Online, Indonesiahttp://easindo.co.id18 Office Park Lantai 22 Suite E, F & G Jl. TB Simatupang Kav.18, Jakarta Selatanelsyeas@easindo.co.id7204
Svirchev OHS ManagementOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, FrenchLive Online, Benin, Burkina Faso, Canada, Cote D'Ivoire, Mali, Niger, Republic of Guinea, Senegal, Togo1174 Creekside Dr Coquitlam BC V3E 1A4svirchev@mac.com7697
bp Caspian Sea Ltd.OHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA506, OHTA507English, TurkishLive Online, Azerbaijan, Turkeyhttps://www.bp.com/en_az/azerbaijan/home.htmlBP Xazar Centre. 153 Neftchilar avenue. Baku, Azerbaijan AZ1010amirk1@bp.com7915