REF2019/01 Guidance on submissions 236. The output must be deposited within the repository within a specified timeframe, determined by the date of acceptance:

a. Outputs accepted for publication from the 1 April 2016 to 31 March 2018. The output must have been deposited as soon after the point of acceptance as possible, and no later than three months after the date of publication.

b. Outputs accepted for publication from the 1 April 2018 to 31 December 2020. The output must have been deposited as soon after the point of acceptance as possible, and no later than three months after this date.

 237. The output must have been deposited as the author’s accepted manuscript. Where the published ‘version of record’ is available for deposit within the required timeframe, and where the journal or conference publisher permits it, the ‘version of record’ may be deposited instead of the accepted manuscript. 241. The output must be presented in a way that allows it to be discovered by readers and by automated tools such as search engines. The discovery requirements should typically be fulfilled through the storage and open presentation of a bibliographic or metadata record in the repository. Once discoverable, the output should remain so. 249. The routes to determine the timing of compliance with the access requirements are set out below:

a. Route 1: For outputs deposited with no or ‘zero’ embargo. Where the output has no or a ‘zero’ embargo period it must meet the access requirements as soon as possible and no later than one month after deposit.

b. Route 2: For outputs deposited under embargo. Where the output is deposited under embargo, it must meet the access requirements as soon as possible and no later than one month after the end of the embargo period. The embargo period typically begins at the point of first publication (including ‘early online’ publication).

 250. Embargo periods should not exceed the following maxima:

a. 12 months for Main Panel A and Main Panel B.

b. 24 months for Main Panel C and Main Panel D.