PRNEWS.IO cares about the publications it represents and their rules established to provide the best content quality. That’s the reason texts should comply with publication conditions and why conditions differ.
All conditions for a specific publication and available formats can be found if you go to its detailed page. Most of them are self-descriptive, but if you feel stuck with one of them, click the “ⓘ” to learn more about it.
These are the same conditions you can find after buying an article when submitting a text. It is there to ensure that your text complies with them.