Frequently Asked Questions


You will need to review the terms of the CLOCS Memorandum of Understanding and Terms of Reference. If you agree to accept these terms you will need to register with CLOCS and submit an acceptable CLOCS Implementation Plan online.  This Plan will provide a headline statement of your corporate intent to implement and comply with the CLOCS Standard.  Once this Plan has been approved you will become a CLOCS Champion and your name will display in the CLOCS Champion Directory.

When organisations have been approved as ‘CLOCS Champions’ an account is created on a dedicated portal.  This has been developed enable Champions to manage:

  • Implementation Plans, progress and evidence of compliance
  • Information that is published in the CLOCS Champion Directory
  • Distribution of CLOCS bulletins, alerts and other communications within your organisation.

There is no charge for becoming a CLOCS Champion, however, there are costs associated with demonstrating compliance to the CLOCS Standard through CLOCS Site Compliance Monitoring Visits and FORS or equivalent accreditation.

No.  CLOCS compliance can only be established upon attendance at a specific construction site. Vehicle Operators demonstrate compliance through FORS Silver accreditation or FORS Bronze + safety equipment and driver training specified in the CLOCS Standard. Developers and Principal Contractors demonstrate compliance through Site Compliance Monitoring visits.  You can find a directory of CLOCS Champions –they are companies where a corporate commitment to work towards CLOCS compliance has been made.  These companies understand the CLOCS Standard and can respond positively to procurement requirements.

CLOCS Champions are encouraged to widely promote CLOCS.  You can download a copy of the CLOCS logo to embed on your website from your account in the CLOCS Portal.  Copies of logos and artwork for posters and hoardings can be provided upon request. Contact


This form is part of the CLOCS Compliance Toolkit.  Suppliers may be asked to complete and submit to their client. It enables you to declare the level of compliance against the CLOCS Standard of all vehicles and drivers delivering to, collecting from and servicing projects. Download form

CLOCS applies to contracts where the risk assessment undertaken by the client/developer has identified that proposed construction work presents a risk to vulnerable road users. The developer must clearly specify the scope of the CLOCS Standard e.g. whether it applies to all vehicles or only those above 3.5 tonnes.

If a supplier does not agree with the new requirements then you should explore what rights you, as the client, have written into your contract with them. Most contracts include the ability to make variations through negotiation or arbitration if necessary. 

In the event that a supplier is unwilling to meet the requirements once a contract is signed and agreed then they may be in breach of contract. Early termination is an option and it should be stressed to the supplier that their chances of securing repeat work will be affected.

If you are making changes to existing contracts then the cost and liability of changes should be agreed during the variation process. If it is a new contract then the supplier would be liable for all costs of complying with the requirements, provided they are unequivocally advised during the tender process.

Ask the company to provide detailed evidence of why they think their vehicles should be exempt. 

Ask all suppliers, including foreign vehicles, to provide structured risk assessment and propose mitigation methods to eliminate any risks.


Clients/developers and contractors – to understand how well each of their sites is complying against the National CLOCS Standard, and to identify any areas for improvement (to ensure all reasonable steps have been taken to prevent collisions between HGVs and VRUs).

Vehicle operators – to reassure operators that they will be attending safe sites suitable for their vehicles and to understand that all parts of the supply chain including the client are undertaking their CLOCS responsibilities.

CLOCS team – to understand how well CLOCS Champion’s sites are complying against the National CLOCS Standard, to capture best practice examples, to provide anonymised benchmark data, and to identify opportunities to provide better support/guidance.

Public – safe sites, vehicles and drivers working to a common National CLOCS Standard will help reduce the number of incidents involving vulnerable road users and construction HGVs.

You can download the CLOCS Monitoring Checklist and Preparing for your CLOCS visit guide to help you prepare for the visit. These have been developed together with CLOCS partners the Considerate Constructors Scheme (CCS). Monitors will particularly be looking for evidence of an effective Construction Logistics Plan, traffic routing, suitability of the site for road vehicles with safety features, site access & egress, vehicle loading & unloading areas, control of deliveries/collections at peak times, gate checks to ensure supplier compliance (vehicle & driver) – see section 3.1 of the CLOCS Standard.

CLOCS has partnered with the Considerate Constructor Scheme to use its nationwide team of monitors – reducing costs to all and benefitting from CCS’s 20 years’ experience/success in constructively assessing site compliance against its Code of Considerate Practice. All visits are carried out in a constructive and consultative manner and do not effect the regular CCS audit.

The report remains confidential between CLOCS and the CLOCS Champion. The CLOCS Champion can share the report with others as it chooses. Whilst the report remains confidential, CLOCS may use the anonymous data to benchmark against other Champions.

For CLOCS sites that are already registered with the Considerate Constructor’s Scheme, a CLOCS site compliance monitoring visit will cost £175 when done at the same time as a CCS review

A CLOCS monitoring visit that isn’t done alongside a CCS visit will cost £300 to cover travel time & costs.

A CLOCS client Champion should ensure that at least 20% of their ‘proposed sites’ each year receive one or more visits from the CLOCS Site Monitoring Team. At least 80% of the sites visited by the CLOCS Site Monitoring Team, should be compliant on all 7 aspects of the approved checklist. Non-compliances should be quickly addressed. CLOCS Site Monitoring policy.

Broadly speaking, a site should be assessed every 6-9 months to reflect changes in its related logistics and its impact on the journeys made by HGVs and other vehicles. Experience suggests sites should operate for c. 3 months to allow for set up and to embed arrangements. Equally, the final visit to a site should be at 75% of project duration to ensure any changes effected will make a difference.

All Site Monitoring Visits are completed in a constructive and supportive way to help companies identify ways to improve implementation. There is no direct consequence for a site being found non-compliant as there is not a contractual commitment between CLOCS and a CLOCS Champion. However, a Champion’s status is at risk of suspension if the above policy is not complied with, or at least every effort made to comply, and a reasonable explanation given to the CLOCS team. 

There may be a consequence for a site being found non-compliant if a contractual commitment exists between the site’s operator and another party such as the client or planning authority – and it will be for those parties to resolve.

Email to request your visit. Please provide the following details:

  • Company name
  • Site address
  • Contact name, e-mail address & phone number – ideally both for person requesting a visit and the site manager
  • CCS registration ID (if applicable)


CLOCS is not currently an accrediting body


CLOCS is for regulators, developers and principal contractors to plan, procure and manage construction sites without placing vulnerable road users at risk from vehicles servicing their sites. FORS is an accreditation scheme that enables vehicle operators to demonstrate that their vehicles comply with the CLOCS Standard. View this videograph for further information regarding CLOCS and FORS compatible compliance

FORS Silver is completely aligned with CLOCS – if your fleet has FORS Silver or Gold accreditation then it should meet the requirements of the CLOCS Standard. 

FORS Bronze (or equivalent) is the minimum accreditation acceptable and there are additional requirements (outlined in the  section 4.1 of the CLOCS Standard) for you to meet:

  • Collision reporting (4.1.2)
  • Traffic routing (4.1.3)
  • Blind-spot minimisation (4.2.1)
  • Warning signage (4.2.2)
  • Under-run protection (4.2.3)
  • Vehicle maneuvering warning (4.2.4)
  • Driver training and development (4.3.1)
  • Driver licensing (4.3.2)

Gate checks will identify if vehicles and drivers are not complaint with the CLOCS Standard when they arrive at site.

The FORS website has a list of all registered and accredited companies and their FORS status. If the operator offers an equivalent accreditation they should be required to advise where that can be verified.

CLOCS does not supersede FORS – Meeting FORS bronze accreditation is the first requirement in the CLOCS Standard. If you are a silver or gold FORS accredited company, then you already comply with the CLOCS Standard.

FORS helps you demonstrate compliance with the CLOCS Standard. For further information about FORS, please visit or call the helpline on 08448 09 09 44

No. FORS and CLOCS are run independently. You still need to register with CLOCS and complete an accepted Implementation Plan to be a CLOCS Champion.


The CLOCS team is very lean with limited resource for directly supporting events. However, a number of our Champions are regularly involved in local events and we very happy to make connections. We can also provide logos and artwork available to help you to produce CLOCS branded collateral to promote your event. Please contact for further information.

CLOCS does not have the capability to test, inspect and approve technologies and is not therefore able to recommend or approve products. However, we are always open to offers of sponsorship to underwrite specific events and activities and to support our overall aim of eliminating risk to vulnerable road users.