DPF survey: resistance to diesel filters

DPF survey in full

A joint CJ/Construction Plant-hire Association (CPA) survey has revealed considerable resistance to the London Best Practice Guide’s (BPG) requirement to fit diesel particulate filters (DPFs) to plant on large, high-profile London sites.

Having surveyed the CPA’s 1,500 plant hire members, 85% of respondents would like to tender for work on the Olympics and other sites covered by the BPG, but less than half would do so if it involved fitting DPFs. Those considering tendering would only do so if the contractor signs a long-term deal – typically five to seven months.

However, an even bigger hurdle has to be overcome as none of the respondents would consider fitting a filter if it voided the machine manufacturers’ warranty and only just over a quarter were prepared to accept a Letter of No Objection.

A massive 96% would require written confirmation that the modified machine remained compliant with the Provision and Use of Workplace Equipment Regulations (PUWER).

“This survey confirms the feedback we have been receiving over the past two years,” said CPA chief executive Colin Wood.

More than two thirds of respondents would insist on separate reimbursement for fitting a DPF, with only 29% prepared to roll the expense into the hire charge – again, most would require long-term contracts. Fewer than one in five thought they could get a higher rate if an off-hired machine with a DPF was sent to a site not covered by the BPG.

“Our members are prepared to fit DPFs provided the warranties stay in place and the customer reimburses the cost,” Wood said, but added: “The process remains stalled, because to date no DPF manufacturer has even registered with the Energy Savings Trust, which has to approve conformity.”

DPF survey in full