In December 2013 the U.S. Preventive Services Task Force (USPSTF) changed its long-standing recommendation that there is insufficient evidence to recommend for or against screening for lung cancer to the following: "The USPSTF recommends annual screening for lung cancer with low-dose computed tomography in adults ages 55 to 80 years who have a 30 pack-year smoking history and currently smoke or have quit within the past 15 years. These recommendations were used by the Agency for Healthcare Research and Quality (AHRQ) to produce patient and clinician resources to support informed decision making for lung cancer screening. Screening should be discontinued once a person has not smoked for 15 years or develops a health problem that substantially limits life expectancy or the ability or willingness to have curative lung surgery". Another U.S. guideline recommendation is very similar, but with a cut-off at age 74. The English National Health Service was in 2014 re-examining the evidence for screening.