STEP #1: Many publishers allow authors the right to submit an article to an institutional open-access repository. Check your publication agreement, or consult SHERPA/ROMEO to determine whether your journal automatically allows its authors to submit articles to repositories such as Amherst's.
[Note: Please read the full entry for your journal on the SHERPA/ROMEO website; do not rely solely on the color classification system, since many journals have complex systems of restrictions and limited allowances.]
STEP #2: Consider petitioning your publisher for an exception to its policy. Either call your editor or simply attach a SPARC Author's Addendum to your contract.
STEP #3: You've reached this step if (a) you chose not to petition your journal or (b) your journal declined your petition. To publish with the journal anyway, simply invoke a waiver to Amherst's policy by completing the Request for Waiver form.
You've now fulfilled your obligations under the faculty's open access resolution. You do not need to complete STEP #4.
STEP #4: Submit your article by uploading it to the Octagon as described in the instructions:
You are done!