| For sample questions please contact your state diagnostic lab | Find your state lab |
| For all other question, contact the specific regional center or committee | |
| Regional Centers | |
| Great Plains Plant Diagnostic Network | gpdn@npdn.org |
| North Central Plant Diagnostic Network | ncpdn@npdn.org |
| Northeast Plant Diagnostic Network | nepdn@npdn.org |
| Southern Plant Diagnostic Network | spdn@npdn.org |
| Western Plant Diagnostic Network | wpdn@npdn.org |
| Center for Environmental and Regulatory Information Systems | ceris@npdn.org |
| NPDN IT Center | it@npdn.org |
| Committees | |
| National Data Committee | data@npdn.org |
| Accreditation Committee | accreditation@npdn.org |
| Professional Development Committee | prof_dev@npdn.org |
| Protocols & Validation Committee | protocols@npdn.org |
| Proficiency Committee | proficiency@npdn.org |
| Outreach & Extension Committee | outreach@npdn.org |
| Online Communications Committee | communications@npdn.org |
| Regulatory Relations Committee | regulatory@npdn.org |
| LIMS Technical Committee | lims@npdn.org |
| Programs | |
| NPDN Communicator newsletter editor | newsletter_editor@npdn.org |
| Beltsville Workshops Program | beltsville_workshops@npdn.org |
| Star-D Accreditation Program | stard@npdn.org |
| GPDN Webinars Coordinators | gpdn_webinars@npdn.org |
| NPDN National Program coordination | directors@npdn.org |
| Regulatory Partners | |
| Contact your State Plant Regulatory Official (SPRO) | |
| Find your State Plant Health Director (SPHD) | |
