Remember, I'm in California. We are collectively nothing if not political correct and all accommodating. It is a bit tedious at times.
Your UK PL says able to machine wash and dry, with no dodads the kids can get injured by or tear off and choke on. It has a listing of generally suitable sizes with the comment that any will be happily accepted. Usually not over 48" in either direction.
In the US we get fussier. We do like to sue over minor things so we get more complicated. This is what is acceptable:
WHAT TYPE OF BLANKETS DOES PROJECT LINUS ACCEPT?
Our chapter coordinators accept NEW, HANDMADE, WASHABLE, blankets and afghans for giving to children ages 0-18 years. Project Linus blankets are not donated to adults. As a national policy we accept all sizes and styles, although some chapters may have more narrow requirements based on the needs of the facilities to which they donate. Project Linus has a non-smoking policy for chapter coordinators. Coordinators must be non-smokers and live and store blankets in a smoke free environment. Project Linus blankets must be of excellent quality and free from contaminants. Special care should be taken to ensure that blankets are free of smoky smells or any chemicals which could cause problems for a child. Ensure that blankets are free of pet or animal hair. Hospitals will not accept these blankets, and they will most likely be discarded. Recent studies show that laundering these blankets does not remove contamination, and in some cases can even make it worse. Always check blankets carefully for pins, and remove any embellishments such as buttons that could be swallowed.And the list of what isn't acceptable:
WHAT TYPE OF BLANKETS DOES PROJECT LINUS NOT ACCEPT?
Project Linus chapter coordinators are instructed to reject blankets that are not of excellent quality. In addition they must be free from contaminants. Special care should be taken to insure all blankets are free of smoky smells or any chemicals which could cause problems for a child. Hospitals will not accept these blankets, and they will most likely be discarded. Recent studies show laundering such blankets does not remove contamination, and in some cases can even make it worse. Again, if unusually strong smells due to chemicals used in detergents, fabric softeners and dryer sheets, mold and mildew or smoking products are apparent, most hospitals will discard the blanket rather than jeopardize the health of a patient. Always check blankets carefully for pins, and remove any embellishments such as buttons that could be swallowed. Thank you for helping to make sure that Project Linus blankets are safe and healthy, and will bring only comfort and security to a child in need!Typical size here is 40"-48" x 60", nothing smaller than 36" square.
Locally the Coordinator is a bit of a Needle N**i. Makes the Sewing Police types seem downright charming. If you have house pets she has said emphatically not to bother making a quilt as she will throw out anything with a stray hair on it. And yes, she does closely inspect all of them under an OTT light.
So, I'll make a quilt for an Oldie instead. We have a local group that sews up Senior Quilts, for local home bound Oldies. They need a hug too.