In order to be accessible from the storefront:
Record Types: They must be published and Who Can Submit should be set to either Employees Only or Public.
Workflows: Their Who Can Submit drop down menu must be set to either Employees Only (Private) or Public
Also, their respective Category:
Must be set to Published
The "Who Can View" drop down menu must be set to either Employees Only or Public.
Please note: When the submissions are set to Employees Only, then only employee users will see them on the website.