SMMT's Transport News Brief has heard that some operators thought that Transport for London (TFL) had dropped its policy of a 28-day grace period after a vehicle was first spotted in the LEZ. SMMT contacted TFL and the response was: 'TfL's policy of issuing only warning letters to operators of non-compliant vehicles the first time they are seen within the Low Emission Zone will be in place throughout the life of the scheme. The policy has worked well in the months since the scheme started and TfL is very pleased with the levels of vehicle compliance. Compliancy rates for vehicles affected by both the first and second phases of the scheme are high at around 96 and 90 per cent respectively and we expect these figures to continue to rise as operators take action to comply with the scheme.' The LEZ initially hit trucks over 12 tonnes but from 7 July extended to trucks over 3.5 tonnes and buses and coaches over five tonnes with nine or more seats. Those vehicles must meet a Euro 3 emissions standard for particulate matter or pay a £200 daily charge.