Tobacco Regulatory Science currently does not have an an Impact Factor (IF). We have applied to be included and are currently awaiting a decision. Tobacco Regulatory Science should become eligible to receive an IF in mid-year 2018.
The journal Impact Factor is the average number of times articles from the journal published in the past two years have been cited. The Impact Factor is calculated by dividing the number of citations by the total number of articles published in the two previous years. An Impact Factor of 1.0 means that, on average, the articles published one or two year ago have been cited one time. An Impact Factor of 2.5 means that, on average, the articles published one or two year ago have been cited two and a half times. The citing works may be articles published in the same journal. However, most citing works are from different journals, proceedings, or books indexed by Web of Science.