For Skilled Worker Visa and Temporary Worker - Government Authorised Exchange (T5) Visa applicants, the following roles will require an ATAS certificate where both of the requirements under 'a' and 'b' are met below.

a) The research is at PhD level and above in one of these SOC (occupation) codes

• 2111 Chemical scientists
• 2112 Biological scientists and biochemists
• 2113 Physical scientists
• 2114 Social and humanities scientists
• 2119 Natural and social science professionals not elsewhere classified (e.g. Research Fellow, Research Associate, Research Assistant)
• 2150 Research and development managers
• 2122 Mechanical engineers
• 2123 Electrical engineers
• 2124 Electronics engineers
• 2127 Production and process engineers
• 2129 Engineering professionals not elsewhere classified
• 2311 Higher education teaching professionals (e.g. Professor, Reader/Senior Lecturer, Lecturer)
• 3111 Laboratory technicians
• 3112 Electrical and electronics technicians
• 3113 Engineering technicians
• 3114 Building and civil engineering technicians
• 5235 Aircraft maintenance and related trades

b) The field of research is in one of these subject areas

Academic subject (CAH3) codes are listed below under research area.

Biological Sciences:

• CAH03-01-02 - Biology (non-specific)
• CAH03-01-03 - Ecology and Environmental Biology
• CAH03-01-06 - Zoology
• CAH03-01-04 - Microbiology and Cell Science
• CAH03-01-05 - Plant Sciences
• CAH10-03-05 - Biotechnology
• CAH03-01-07 - Genetics
• CAH02-05-03 - Biomedical Sciences (non-specific)
• CAH03-01-08 - Molecular Biology, Biophysics and Biochemistry
• CAH03-01-01 - Biosciences (non-specific)
• CAH03-01-10 - Others in Biological Sciences

Engineering:

• CAH10-01-01 - Engineering (non-specific)
• CAH10-01-07 - Civil Engineering
• CAH10-01-02 - Mechanical Engineering
• CAH10-01-04 - Aeronautical and Aerospace Engineering
• CAH10-01-05 - Naval Architecture
• CAH10-01-08 - Electrical and Electronic Engineering
• CAH10-01-09 - Chemical, Process and Energy Engineering

Mathematical and Computer Sciences:

• CAH09-01-01 - Mathematics
• CAH09-01-02 - Operational Research
• CAH11-01-01 - Computer Science
• CAH11-01-02 - Information Technology
• CAH11-01-03 - Information Systems
• CAH11-01-04 - Software Engineering
• CAH11-01-05 - Artificial Intelligence

Subjects allied to Medicine:

• CAH02-02-01 - Pharmacology
• CAH02-02-02 - Toxicology
• CAH02-02-03 - Pharmacy
• CAH10-01-06 - Bioengineering, Medical and Biomedical Engineering
• CAH02-05-03 - Biomedical Sciences (non-specific)

Physical Sciences:

• CAH07-02-01 - Chemistry
• CAH10-03-07 - Materials Science
• CAH07-01-01 - Physics
• CAH07-01-02 - Astronomy
• CAH26-01-05 - Others in Geographical Studies
• CAH07-04-01 - Physical Sciences (non-specific)
• CAH07-04-03 - Sciences (non-specific)
• CAH07-04-04 - Natural Sciences (non-specific)

Technologies:

• CAH10-03-03 - Polymers and Textiles
• CAH10-03-01 - Minerals Technology
• CAH10-03-02 - Materials Technology
• CAH10-03-04 - Maritime Technology

Veterinary Sciences, Agriculture and related subjects:

• CAH05-01-02 - Others in Veterinary Sciences
• CAH06-01-02 - Agricultural sciences