Do you have to register separately to donate organs, tissue, and corneas? (Pennsylvania)

I was at the Emergency Room today, and there was a flyer that said (in part): “Register today as an organ, tissue, and cornea donor”.

When I got my PA state ID, I checked the organ donor box and have that designation on my ID. Do I need to do anything else to have my tissue and/or corneas used as well, or does being an organ donor cover that?