Operator
Good morning. Welcome to the Waters Corporation 4th Quarter 2020 Financial Results Conference Call. All participants will be in listen-only mode until the question-and-answer session of the conference call begins. This conference call is being recorded. If anyone objects, please disconnect at this it is now my pleasure to turn the call over to Mr. Bryan Brokmeier, Head of Investor Relations. Please go ahead, sir.
Bryan Brokmeier --
Chartered Financial Analyst, Senior Director, Investor Relations
Thank you, operator. Good morning everyone and welcome to the Waters Corporation 4th Quarter Earnings Conference Call. Before we begin, I will cover the cautionary language. During the course of this conference call, we will make various forward-looking statements regarding future events or future financial performance of the company. In particular, we will provide guidance regarding possible future results of the company and commentary on potential market and business conditions that may impact Waters Corporation over the first quarter and full year 2021. We caution you that all such statements are only our present expectations and that actual events or results may differ materially from those indicated in our forward-looking statements. For a detailed discussion of some of the risks and contingencies that could cause our actual performance to differ significantly from our present expectations, see the risk factors included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2019 in Part 1 under the caption Risk Factors and our most recent quarterly report on Form 10-Q for the quarter ended September 26, 2020 in the Part 1 under the caption Risk Factors, both of which are on file with the SEC, as well as the cautionary language included in this morning's press release including with respect to, risks related to the effects of COVID-19 pandemic on our business. We further caution you that the company does not intend to update any of the predictions or projections except during our regularly scheduled quarterly earnings release conference calls and webcast or as otherwise required by law. The next earnings release call and webcast is currently planned for May 5, 2021. During today's call, we will be referring to certain non-GAAP financial measures. Reconciliations of the non-GAAP financial measures to the most directly comparable GAAP measures are attached to our earnings release issued this morning and available on the company's website. In our discussions of the results of operations, we may refer to non-GAAP results, which exclude the impact of items such as those outlined in our schedule titled Reconciliation of GAAP to Adjusted Non-GAAP Financials included in this morning's press release. Unless stated otherwise, references to quarterly results increasing or decreasing are in comparison to the 4th quarter of fiscal year 2019. In addition, unless stated otherwise, all year-over-year revenue growth rates including revenue growth ranges given on today's call are given on a comparable constant currency basis. Now, I'd like to turn the call over to Dr. Udit Batra, Waters' President and CEO. Udit?