Can I use a tool/resource that I did not develop?

Yes. However, there must be explicit permission provided for you to use the resource/tool from the original principal investigator/project lead (PI/PL) who developed that tool/resource in the form of a letter of support. Approval to use and, if applicable, adapt, tool(s) and resource(s) from the relevant copyright owner of the tool(s) and/or resource(s) (which will typically be the awardee institution of the original PCORI Award project team) in the form of a written letter of support. The relevant owner must grant the applicant rights in the engagement tool(s)/resource(s) sufficient to carry out the project.