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Cleaning Topic: Learn About (os1)



CERTIFIED SUCCESS – June 2018
Cleaning Accreditation Boosts Professional Growth



– 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