Can USPS Imperforate Stamps Be Used For Postage?

I have a question about modern USPS press sheets without die cuts.

Are individual stamps cut from these press sheets valid for postage on regular mail?

I noticed that some USPS product descriptions state "Collectible item only (not eligible for mail use)", even though these are genuine USPS-issued stamps.

Here are a few examples from the official USPS Postal Store:

2026 American Bison:
https://store.usps.com/store/produc...uts-S_488808

2026 Bruce Lee:
https://store.usps.com/store/produc...uts-S_488008

2023 Ruth Bader Ginsburg:
https://store.usps.com/store/produc...uts-S_483308

Does anyone know whether this restriction applies only to the intact press sheet or also to individual stamps carefully cut from it?

Has anyone actually used these stamps for postage, particularly in recent years?

I've used imperf press sheet singles as postage for a long time and no one has ever said anything. AFAIK, they are valid for postage.

By the way, when I go to the links you provided, I do not see "Collectible item only (not eligible for mail use)" anywhere on the page.

Thanks for sharing your experience! It's good to hear that you've been using imperforate stamps for postage without any issues.

Regarding the USPS description, here's a screenshot from the Bruce Lee Press Sheet Without Die Cuts product page. Under "How it works", it explicitly states:

"Purpose: Collectible item only (not eligible for mail use)."

I'm curious whether USPS means the intact press sheet isn't intended for mailing, or whether they've introduced a restriction on using individual stamps cut from these sheets.

I see that now. Interestingly that this same admonition is also included on the press sheets WITH die cuts... but how would anyone know if a die cut stamp came from retail sheets or a die cut press sheet?

I have no idea why that statement is there. It makes no sense.