Cleaning Topic: Learn About os1

8/16/2023
John P. Walker Professional Development Center for Cleaning Operations Opens

8/24/2021
Frontline Workers Recognized With Service Awards

9/10/2019
Cleaning Industry Reps To Gather For Symposium

CERTIFIED SUCCESS June 2018
Cleaning Accreditation Boosts Professional Growth

June 2018
Getting Ahead Of Cleaning Business Competition

6/20/2018
University of Michigan’s John Lawter Named 2018 (OS1) Pinnacle Award Winner

November 2011
Dixon Boosts Clean with (OS1)
Certification audit showcases safety and green opportunities for one middle school

April 2011
Third-Party Green Certifications Lead To New Opportunities
An overview of LEED AP, GS-42, CIMS-GB and (OS1) certifications

CERTIFICATION July 2008
Certifications For BSCs Elevating The Industry
Third-party cleaning certifications growing in popularity among BSCs

COVER STORY August 2005
A day in the life of three cleaning pros: BSC Snapshots