Learn about Cleaning Topic: os1

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

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

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

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