9. TAXES

We are subject to tax examinations in various taxing jurisdictions. The earliest years open for examination are as follows:


		Earliest Exam Year
Taxing Authority Jurisdiction:
U.S. Federal		2016
Various U.S. States		2015
Puerto Rico (U.S. Territory)		2014
Canada		2014

Our policy is to accrue interest and penalties on any uncertain tax position as a component of income tax expense. No such expenses were recognized during the three months ended March 31, 2020 and 2019. We do not believe there will be any material changes in our uncertain tax positions over the next 12 months.

Accounting for uncertainty in income taxes requires financial statement recognition, measurement and disclosure of uncertain tax positions recognized in an enterprise’s financial statements. Under this guidance, income tax positions must meet a more-likely-than-not recognition threshold at the effective date to be recognized upon the adoption of the standard. We did not have any unrecognized tax benefits and there was no effect on our financial condition or results of operations.

Our estimated effective tax rate was 21.0% for the three months ended March 31, 2020 and 2019, respectively.