PAS 128 specification

Subscan adopt PAS 128 specification

UK’s first specification for the detection of underground utilities launched at ICE – PAS 128

What is PAS 128?

This is a new specification created  by the British Standard Institution for the utility surveying industry and was published June 30th 2014.

What does this mean for the utility mapping industry?

Previously unregulated, quality of surveys varied form operator to operator. This new specification sets out to provide the client with a standard which must be adhered to by the survey provider. Providing 4 different levels:

  • Type DDesktop Search – This can be provided through our Subsearch product.
  • Type CSite Reconnaissance – Site walkover confirming service plans information.
  • Type BDetection – This is the utility survey element of the PAS employing the use of EM and GPR survey techniques.
  • Type AVerification – Carry out trial hole excavations with vacuum techniques.

Is this a mandatory requirement?

Currently this is a voluntary standard, however Subscan have adopted this standard from its arrival in the industry.

What changes will be made on a Client’s site?

As Subscan have always worked to the very highest standard, over and above of what is the requirement set out, Subscan Client’s will continue to receive the very highest quality of service.

Subscan UDS Limited look to the future and embrace this new standard and are working to ensure the service Subscan provide exceeds this standard.

More details regarding PAS 128 can be found on The Survey Association website,


Should you have any questions regarding this, please don’t hesitate to get in touch with us. You can either give us a call on 0344 499 5220 or contact us via our website.