26147578-D221-41F9-ABB7-6885ACDF18E59F891113-ECA4-4515-88FC-982D0EA7E7FACookie notification7FB51430-02DF-4280-A563-E7BFD99CA3FDF47A8801-4306-4881-9294-84749C550F38FF4A50A0-E663-4209-9CD3-74D9B638DE9A

Product acceptance

What is product acceptance?

The product acceptance process gives us the assurance that products accepted for use on or about our infrastructure are:

  • safe
  • compatible
  • reliable
  • fit for purpose
  • do not export unacceptable risks to Network Rail infrastructure.

Only accepted products, except those allowed by NR/L2/RSE/100/05, shall be used on the rail infrastructure.

Do I need to apply for acceptance?

Network Rail standard NR/L2/RSE/100/05, Product introduction and change, governs the process for the acceptance of products.

This includes:

  • new or modified products, materials, equipment, and systems
  • changes of application
  • road-rail vehicles or attachments, and rail-mounted machines, on-track machines, road plant and portable and transportable work equipment that could affect or interact with the infrastructure.

You can view the types of products that typically require approval (PDF). Please note that this list is not exhaustive and advice may be required to determine whether your product requires approval.

Please also refer to the Network Rail standard “NR/L2/RSE/06 - How to decide what needs product acceptance”, for further details on the products that this process applies to.

See Accessing Network Rail standards for contractors and suppliers (PDF) for information on standards.

For further guidance please email us at prodacc@networkrail.co.uk.

My application status

A list of live applications and recently approved products is available here.

Periodic statistics

Applications received31
Certificates issued46
Average period processing time (days)36

How to find an approved product

The catalogue of accepted products is available on the PADSnet website.

PADS (Parts and Drawings System) is owned by SERCO and the data is managed by Network Rail. This includes the creation and revision of PADS numbers.

There are more than 85,000 products accepted for use on our infrastructure.

If you have any queries relating to catalogue numbers or PADSnet, please contact the Catalogue Management team at nsccataloguequeries@networkrail.co.uk.

How to apply for product acceptance

Applications need to be submitted by a Network Rail operative (applicant), who is prepared to act in a sponsorship capacity and who can demonstrate a Network Rail business requirement.

You will need to provide justification by demonstrating monetary, safety and / or performance benefits to Network Rail.

Applications should be submitted when products or systems have been fully developed and have reached technology readiness level (TRL) seven. Definitions of the TRL levels are available here (PDF).

If your product has not yet reached TRL 7, please refer to the Innovations and Suggestions page.

Acceptance is subject to standard terms and conditions, which are available in the sample Certificate of Acceptance (PDF).

Please download and read our guide to product acceptance (PDF).

To apply, complete our online application form.

You will receive an email notification when we have processed your application. This will include your unique product acceptance reference number and details of the next approval steps.

Supplier quality assurance

Suppliers and manufacturers of controlled products are required to engage in our supplier quality assurance process.