National Occupation Standards (ASTATT Documents)

The National Occupational Standards (NOS Documents) are an integral part of Air Tightness Testing. They make up the training course requirements, the auditing requirements and are used by testers for the day-to-day running of their businesses.

The documents can be downloaded directly from the Repository for all approved National Occupation Standards or directly from below.

• ASTATT1 – Prepare to carry out air tightness testing
• ASTATT2 – Prepare building for air tightness testing
• ASTATT3 – Carry out air tightness testing for single dwellings and other small buildings
• ASTATT4 – Carry out air tightness testing for non-simple buildings
• ASTATT5 – Prepare and issue the air tightness test report
• ASTATT6 – Calculate the area of building envelopes
• ASTATT7 – Manage all calibrated equipment
• ASTATT8 – Initiate and progress contracts with clients to carry out air tightness testing
• ASTATT9 – Quality assure the air tightness testing process
• ASTATT10 – Carry out air tightness testing on large and complex, high rise and phased hand over zonal buildings

Minimum Technical Competencies (External Downloads)

• Air tightness Minimum Technical Competencies (MTC) final December 2014

MHCLG Conditions of Authorisation (External Downloads)

• Conditions of Authorisation for Air Tightness Testing Schemes 

ATTMA Industry Research

• IR001 – ATTMA Industry Research Report