Certificate of RegistrationThis certifies that the Environmental Management System of

Waste Management Sustainability Services720 E. Butterfield Rd.

Lombard, Illinois, 60148, United States

has been assessed by NSF-ISR and found to be in conformance to the following standard(s):

ISO 14001:2015Scope of Registration:

Environmental management services associated with all activities related to the U.S. and Canadian Operations Groups, under the Sustainability Services line of business of Waste Management.

Carl Blazik,Director, Technical Operations & Business Units,NSF-ISR, Ltd.

Certificate Number: 3Y251-EM1Certificate Issue Date: 10-JUL-2018Registration Date: 10-JUL-2018Expiration Date *: 19-SEP-2021