Procurement - civil engineering dynamic purchasing system – projects up to £5M: supplier's guide

Tender document 

Buying organisations will develop their tender documents for calls for competition as they would for any tender, including how and when to respond, along with details of the evaluation criteria that will be used.

Responses received by the deadline will then be evaluated and the tenderer that offers the most economically advantageous tender awarded the call-off contract. The award criteria for each call for competition will include both cost and quality of service. The overall weightings will be within the following ranges as advertised within the

Contract Notice:

• price 10%-50%

• quality 50%-90%

All call for competition transactions will be carried out electronically.

Suppliers will be given a minimum of 10 days to respond to calls for competition/ITTs, however, many procurement exercises may allow longer response times. This will depend on the complexity of the requirement.

CCT strongly encourages buying organisations to use Public Contracts Scotland – Tender (PCS-T) to run their call for competitions/ITTs under the DPS.

Buying organisations that do not wish to use PCS-T can run the DPS call for competition process by any electronic means, i.e. PCS or any other valid electronic portal.

NEC4 contract type and options

Buying organisations using the DPS will choose the NEC4 contract type that suits their requirement and use the relevant template provided by CCT. The terms and conditions templates that will be used for call-off contracts are as follows:

• NEC4 Engineering and Construction Contract (ECC)

• NEC4 Term Service Contract (TSC)

• NEC4 Engineering and Construction Short Contract (ECSC)

• NEC4 Term Service Short Contract (TSSC)

Useful NEC4 background

The bespoke amendments to the NEC4 standard forms of contract arise from three basic considerations:

• amendments to reflect the particular requirements and desired risk allocation of the Scottish Ministers and/or Contracting Authorities;

• amendments to reflect Scots law and practice; and

• presentational changes to make the DPS more user friendly and to ensure continuity across the suite of contracts used

Graduated pricing mechanism (GPM)

The Graduated Pricing Mechanism (GPM) is a method to calculate the price score of tender submissions which respects the principle of equal treatment but reduces the incentive to submit low bids. The use of a GPM is mandated under this DPS and buying organisations will use it to determine price scores in calls for competition.