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Professional – Persons actively engaged in municipal arboriculture or in related fields such as: city forester, city arborist, shade tree commissioner, tree warden, or any persons officially in charge of city street or park tree planting and management, or their assistants.  Also, county, state, or federal employees who are charged with responsibility of assisting municipalities with arboriculture needs.  Non-commercial people in fields related to arboriculture, such as: landscape architects, scientists, and managers of arboretums can apply.  Annual dues are $95.00. Apply for Professional Membership

Corporate – This group includes commercial companies representing products and services of the arboriculture field. Annual dues are $160.00, up to five non-voting members may be included at an additional $35 a year. Apply for Corporate Membership

Municipal - This group includes cities and towns with the same privileges as a corporate member with one vote. Annual dues are $150.00, up to five non-voting members may be included at an additional $35 per person. Apply for Municipal Membership

Senior – This subcategory of Professional membership includes retired municipal arborists.  Annual dues are $50.00. Apply for Senior Membership

Student – This subcategory of Professional membership includes full-time students of a college or horticultural school, enrolled in arboriculture.  When a student joins either ISA international or and ISA Chapter, their SMA student membership is free. A student membership for a student who is neither an ISA International or ISA Chapter member is $50. Apply for Student Membership

Affiliate - This group includes non-industry related individuals, who are not eligible for membership in another category, such as members of non-profits, state councils, and allied professions who are not currently employed in an urban forestry position. This category has no voting rights but receives an electronic copy of City Trees. Annual dues are $50.00. Apply for Affiliate Membership

Subscription to City Trees – A subscription to City Trees is included free with any Society membership. Libraries and Universities that are not members may purchase an annual subscription for $70.00.