sentences:  Because the line lay entirely within Hertfordshire, it was championed by the county council who lobbied for funding from LRT (later TfL) and the Department for Transport for 16 years.In 2005 Transport for London (TfL) tentatively committed to providing up to £18m of the estimated cost of £65m, predicting that the link would be operational by 2010.Difficulties arose in securing the remaining funding from the Department for Transport (DfT) and a revised project submission, under new guidelines, was prepared, with a view to obtaining Programme Entry status.