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A non-profit organization serving the Oregon land surveying profession through continuing education and outreach, while promoting high standards of practice and ethical conduct, holding paramount the interests of the public.

*Support PLSO by sponsoring the 2017 Conference, January 18-20, 2017 at Sheraton Portland Airport Hotel!*

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    PO Box 230548 Tigard, OR 97281  Phone: 503-303-1472  Toll-free: 844-284-5496  Fax: 503-303-1472  Email: office@plso.org
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