Stamped Card Message Layout

I was hoping someone on the forum could answer a question for me. I'm trying to find out what are the current postal regulations for stamped cards (formerly known as postal cards). Particularly, I need to know if a sender can still write the address on one side of the card and the message on the other. My family and I are traveling to Eutaw Springs battlefield. Instead of a travel journal, we like to use old postcards with relevant stamps that we mail back to our house. On this trip, we're using a UX90 postal card, but after adding supplemental postage stamps to meet the current postcard rate, I don't have room on the address side to also add a message (like a regular postcard). So I was hoping I could write my message on the blank side of the postal card. However, despite an internet search, I can't find any current information about message placement for stamped cards. Any thoughts you can give would be much appreciated. Thank you.

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The indicia/postage/address side is for the indicia/postage/address.

The other side is the message side.

The UX90 is a nice choice.

Cheers,

/s/ ikeyPikey

as far as I know that is the rule for postal cards. pasting, gluing or otherwise adding anything (other than an address/return address label) would probably subject it to the letter rate. ask at your local station or carrier is another way to find out.

Thank you for your responses. I hope everyone has a great holiday season.

m and m: legalbeagle10 is planning to add postage; this has never been a problem.

legalbeagle10: they're postal cards, not stamped cards, even if you add a stamp (or two)

Cheers,

/s/ ikeyPikey

i didn't mean to infer that uprating via stamps to be able to use an older card was in any way illegal. sorry if there was any confusion in my earlier post. I should have been clearer.