Technical Standards


Conditions of Authorisation (COA)

The conditions that any competent person scheme has to meet, and how to meet those conditions, can be found in the Conditions_of_Authorisation

Minimum Technical Competencies (MTC)

TheĀ Minimum technical Competencies document is intended for use by schemes authorised under the building regulations 2010 for air tightness testing of new buildings. It sets out the minimum technical competencies to be met by members and testers applying to join such schemes and against which competency and knowledge will be assessed and monitored.

National Occupational Standards (NOS)

National Occupational Standards (NOS) are statements of the standards of performance individuals must achieve when carrying out functions in the workplace, together with specifications of the underpinning knowledge and understanding.

The set of NOS statements for Air Tightness Testing can be found at the links below:

ASTTAT 1 – Prepare to carry out air tightness testing

ASTTAT 2 – Prepare building for air tightness testing

ASTTAT 3 – Carry out air tightness testing for single dwellings and other small buildings

ASTTAT 4 – Carry out air tightness testing for non-simple buildings

ASTTAT 5 – Prepare and issue the air tightness test report

ASTTAT 6 – Calculate the area of building envelopes

ASTTAT 7 – Manage all calibrated equipment

ASTTAT 8 – Initiate and progress contracts with clients to carry out air tightness testing

ASTTAT 9 – Quality assure the air tightness testing process

ASTTAT 10 – Carry out air tightness testing on large and complex, high rise and phased hand over zonal buildings