NASA now requires that those receiving research grant funding from the NAS take steps to make their publications and research data publicly accessible. This policy can be found here.
This compliance is effective as of October 2015.
Publication manuscripts will be submitted to NIH's PMC platform via a submission system to be announced; the Data Management Plan (DMP) should include a repository where the data will be deposited.
Earth Science Data and Information Policy:
NASA promotes the full and open sharing of all data with the research and applications communities, private industry, academia, and the general public. The greater the availability of the data, the more quickly and effectively the user communities can utilize the information to address basic Earth science questions and provide the basis for developing innovative practical applications to benefit the general public.
Stated principles include:
From the ROSES-2014:
NASA intends for the Data Management Plan to become a living document; successful proposers will be requested to update their Data Management Plan annually as to the status of and schedule for data set production, sharing, and archive. (ROSES-2014, p 117)