Form: EFFECT

Notice of Effectiveness

March 30, 2022

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Notice of Effectiveness

Effectiveness Date: March 30, 2022
Accession Number: 0001104659-22-038171
Submission Type: POS AM
CIK: 0001693256
Company Name: Select Energy Services, Inc.
File Number: 333-261726