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.

Module CodeModule 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 Name / Module(s)Language(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
01Dust2Noise LtdOHTA501, OHTA503, OHTA505EnglishLive Online, Ireland, United Kingdomhttps://www.dust2noise.com/Chichester Enterprise Centre Terminus Road, Chichester West Sussex, PO19 8FY, UKpaul@dust2noise.com219
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
Asbestos Awareness and Abatement Training Co LtdOHTA504EnglishLive Online, Saudi Arabia, United Kingdomhttps://www.aaa-training.com120 Maryon Road, London SE7 8DHenquiries@aaa-training.com224
Australian Institute of Occupational HygienistsOHTA201EnglishLive Online, Australiahttps://aioh.org.auLevel 1, 40 Keilor Park Drive, Keilor Park, Victoria 3012, Australiaadmin@aioh.org.au160
Beesknees HygieneOHTA201, OHTA501, OHTA503, OHTA505EnglishAustraliahttps://www.ohlearning.com34 Rowella Road, Sidmouth, Tasmania, 7270, Australiatim@beeskneeshygiene.net.au225
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 Africamanager@blugrey.co.za226
BORAL AustraliaOHTA201EnglishAustraliahttps://www.boral.com.au/locations/boral-construction-materials-perth-airport130 Fauntleroy Avenue, Perth, WA 6015mark.lehmann@boral.com.au227
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 Kingdomindustrialhygiene@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, OHTA1001, 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
GlaxoSmithKline Pte LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishSingaporehttps://www.gsk.com/en-gb/23 Rochester Ave, SingaporeLouise.m.burt@gsk.com239
Global Occupational Hygiene Consultancy and Training ServicesOHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA506, OHTA507EnglishGuyana, Jamaica, Trinidad and Tobago7 Avicennia Avenue, Pond Road, Aripero, Trinidad and TobagoAbiolamaria87@gmail.com240
Global Petro SolutionsOHTA201, OHTA507EnglishBrunei Darussalam, Malaysiahttps://www.linkedin.com/company/global-petro-solutions/about/No. 8-1, Jalan KS8/KU5, Klang Sentral of Jalan Meru, 41050 Klang, Selangor Darul Ehsan, Malaysiarizal.maarif@globalpetrosolutions.com241
Golder AssociatesOHTA201EnglishLive Online, United Stateshttps://www.golder.com105 Bradford Road Suite 420 Wexford PA 15090andreas.wagner@wsp.com242
HaS ExpertiseOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507, OHTA1001, SHAEnglishAustralia, Indonesia, New Zealandhttps://www.has-expertise.co.nz9 Raewyn Place, Pakuranga, Auckland 2010suzanne@has-expertise.co.nz244
Haward Technology Middle EastOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishBahrain, Kuwait, Qatar, Saudi Arabia, United Arab Emirateshttps://www.haward.orgOffice 404, Al Falah Tower, Muroor Road – Al Falah Street, Abu Dhabi, United Arab Emirates, P.O. Box 26070dianna@haward.org245
Health Safety Environment AustraliaOHTA201, OHTA501, OHTA503, OHTA504, OHTA507EnglishLive Online, Australia, New Zealandhttps://www.hseaustralia.com.au/193 Henley Beach Road, Mile End, Adelaide, South Australia 5031, Australiajparikh@hseaustralia.com.au247
Helix Occupational HealthOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishAustralia, Kuwait, United Arab Emirateshttps://www.ohlearning.com24 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, Hong Kong, Singapore, United Kingdomhttps://ieh.sg/2 Leng Kee Road #03-10 Thye Hong Centre Singapore 159086training@ieh.sg253
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
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.connell@nl.indorama.net255
International Safety Systems IncOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, 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 Africatraining@iohsolutions.com257
JAS International LLCOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, Mandarin, Portuguese, SpanishUnited Stateshttps://www.JAS-intl.com59-491 Kanaloa Drive, Kamuela, Hawaii, USA, 96743Jas@JAS-Intl.com258
Job Safety Associates LLCOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishBrazil, India, United Stateshttps://www.jobsafetyassociates.com7542 New Hampshire Avenue, Hammond, IN 46323, USAjobsafetyassociates@jobsafetyassociates.com259
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, OHTA1001, SHAEnglishBotswana, Lesotho, South Africa, Switzerland4954 Unit 13 Motlhotlho Cul, Mmabatho, South AfricaKoolebaleihs@hotmail.com261
MacBens Multi Resources LimitedOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishCote D'Ivoire, Ghana, Mali, Nigeriahttps://macbensmultiresources.com/5 Suhum Street, Kokomlemle, Accra, Ghanainfo@macbensmultiresources.com263
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
Martin Schoonhoven Occupational Hygiene Solutions Pty LtdOHTA201EnglishKazakhstan, South Africahttp://www.msohs.co.za/8 Arie Jonas street, Potchefstroommartin@msohs.co.za265
Mongolian National Association of Occupational HygienistsOHTA201, OHTA501, OHTA502, OHTA503, OHTA506, OHTA507English, MongolianMongoliahttps://www.ohlearning.comSuite # 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, OHTA506, OHTA507, SHAEnglishCanadahttps://Newwaveohs.com6 Mountain Ash Court, Dartmouth, Nova Scotia, Canada B2Y4J8stewartssampson@gmail.com271
Nexam Pty LtdOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507, OHTA1001EnglishLive Onlinehttps://www.nexam.co.zaUnit 22, 9 Aurora Drive, Umhlanga, South Africanaadiya@nexam.co.za273
Occ Hygiene & Environmental Risk Management Pty LtdOHTA201, OHTA501, OHTA503, OHTA507, SHAEnglishAustralia, New Zealandhttps://www.oherm.com.au35 Cudmore Tce, Marleston, SA 5033, Australiainfo@oherm.com.au274
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 0046philipv@poltech.co.za276
Paragon IH LLCOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507EnglishIraq, United Arab Emirates, United Stateshttps://www.ohlearning.com2415 Bruer Lake Rd, New Athens, Illinois 62264, USAjbmiller@paragonih.com277
Q Safe for Technical and Professional Training WLLOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507, OHTA1001EnglishKuwait, 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.com4700 W Daybreak Pkwy South Jordan UT 84009Andrew.McCarthy@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
Safe and Sound SolutionsOHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA506, OHTA507EnglishAustralia, New Zealandhttps://www.safeandsound.co.nz4/36 Lowe Street, Addington, Christchurch, 8041garth@safesound.co.nz284
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, OHTA507EnglishChina, India, Kenya, Peru, United Arab Emirates, 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
The Keil CentreOHTA506EnglishUnited Kingdomhttps://www.keilcentre.co.uk18 Atholl Crescent, Edinburgh, EH3 8HQ, United Kingdommelissa@keilcentre.co.uk290
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
Wendal Consulting ServicesOHTA201, OHTA501, OHTA502, OHTA503, OHTA505, OHTA506, OHTA507Arabic, EnglishIraq, United Arab Emirates, United Kingdomhttps://www.ohlearning.com6 Bonham Gate, Walton on Thames, Surrey, KT12 1PX, UKwendalconsulting@outlook.com296
Workplace Health Without BordersOHTA201, OHTA501, OHTA502, OHTA503, OHTA504, OHTA505, OHTA506, OHTA507English, French, Hindi, Spanish, Tamil, UrduLive Online, Bangladesh, Botswana, Canada, Swaziland, Tanzania, United Republic Of, Vietnam, Zambiahttps://www.whwb.orgAttention: Marianne Levitsky (President WHWB), 6130 Tomken Road Mississauga, ON Canada L5T 1X7info@whwb.org298
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