Most funding agencies require a data management plan, and most of them have their own set of unique, though often similar, policies.
The first step in writing a data management plan is understanding what your funder requires. While the DMPTool (see next page in this guide) will offer you some guidance and a template, it's best to start by consulting the detailed information provided by your particular funding agency.

SPARC (the Scholarly Publishing and Academic Resources Coalition) has compiled an excellent resource with information about the data management and data sharing requirements from all the federal funding agencies.

If your funder is the NIH, the Lane Library's guide on Responding to the NIH data management and sharing policy includes specific guidance for that particular agency that you might find helpful.