Appendix Table 1.

Cost Category Definitions

Cost Category	Description
Start-up Costs: One-time costs to a program in order to start the OEND program.
Initial OEND Training for OOPP Staff	Initial OEND training of OOPP staff at a “Training of Dispensers” at the DOHMH or HRC and/or initial training onsite by program staff or invited trainer.
Training Material Development	Development or translation of overdose education and naloxone training materials from DOHMH or HRC to be more specific to population served or for organizational trainings.
Naloxone Tracking Database Development	Development of a database or excel sheet to track and document inventory and dispensing across multiple sites or multiple trainers.
Variable Costs: Costs that depend on the number of training encounters with clients.
One-on-one Client Trainings (either onsite or through mobile unit)	Naloxone distribution through a one-on-one encounter with a client either onsite or on a mobile unit. One-on-one trainings can be delivered by peers, naloxone coordinator, physicians etc.
Organizational Trainings with Organization Staff	Training delivered to staff of an organization that is at high-risk of witnessing an overdose.
Community Trainings	Training delivered to members of a community in an open forum.
Time Dependent Costs: Costs that occur on a regularly scheduled basis and support OEND.
Refresher OEND Training for OOPP Staff	Refresher OEND training for OOPP staff that can be delivered annually, or quarterly by site staff or HRC trainers. This can be done as part of a team meeting or one-on-one testing of trainers.
Client Group Trainings	Training of clients in a group setting on a regularly scheduled basis (ex. weekly, monthly). It can be part of an existing meeting such as a harm reduction group session.
Inventory Management	Time spent ordering kits and blue bags for the kits, preparing blue bags (including naloxone kits, educational materials, breathing masks, alcohol swabs, etc) and tracking inventory.
Naloxone Database Management	Time spent managing the naloxone tracking database.
Documentation and Reporting	Time spent documenting NRF forms (including scanning NRF forms) and reporting naloxone kit distribution to DOHMH for monthly reports.
Refresher OEND Training for OOPP Staff	Refresher OEND training for OOPP staff that can be delivered annually, or quarterly by site staff or HRC trainers. This can be done as part of a team meeting or one-on-one testing of trainers.

Note: Naloxone=intranasal naloxone kits; OOPP= Opioid Overdose Prevention Programs; OEND= Overdose Education and Naloxone Distribution; DOHMH= Department of Health and Mental Hygiene; HRC= Harm Reduction Coalition; NRF= Naloxone Recipient Forms.