Regulations for cleaning US flag?

Hey! The US flag in the gym at my daughters’ school needs to be cleaned. See pic below - the white isn’t very white anymore. We plan to volunteer to get it done, or it may not get done.
I think it’s a 5x8, but hard to judge since it’s hanging way up.
Are there regulations for handling it and cleaning it?
Anything we should consider when determining how to clean it (or where to have it cleaned)?
Thanks!

Here are a couple of links. Apparently hand washing with a mild detergent and air-drying are recommended.
https://www.annin.com/faqs/
https://www.thespruce.com/how-to-clean-the-american-flag-2146327

I used to own a flag store. Annin dealer.
Hand washing is definitely the way to go, but gentle cycle cold water wash with a mild POWDER detergent is also very effective.

Thanks guys!

Thanks for taking care of her!

On this subject. My flag has ripped and needs replacing. Where do I take the old one where she will get the proper send off ?

Amps 13 said:

On this subject. My flag has ripped and needs replacing. Where do I take the old one where she will get the proper send off ?

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Most Scout troops will take them in or your local VFW or American Legion.

You an dispose of it yourself, donate it to Scouts, VFW or American Legion for disposal.
https://starspangledflags.com/proper-disposal-american-flag/#donate_flag

On Flag Day most dry cleaners will clean them for no charge and that’s also acceptable.

Amps 13 said:

On this subject. My flag has ripped and needs replacing. Where do I take the old one where she will get the proper send off ?

Click to expand...

Ace Hardware stores might still have a collection box for old flags (they used to do this, but I don't have one local to me so I don't know if they still do this). They turn them over to scout packs/troops for retirement ceremonies.

Thank you for taking care of that girl.

She has taken care of allot of us!

Interesting that there are no regs, just the VFW. Those who respect the flag decide how to treat it with respect for cleaning and removing from service.

As someone else noted, the Boy Scouts have an official flag retirement ceremony. I'm sure a troop local to you would take an old flag and dispose of it properly.