You can read the FDA letter itself: https://www.regulations.gov/document/FDA-2023-P-4826-0015

Your comment does not give a correct impression of FDA's position here.

Action levels are correctly described by the article and not by whatever FDA quote you provided, which seems to imply the FDA is required to take action to remove products. Surpassing action levels do not require FDA to remove products from the market.

Here is the FDA document I got the quote from

https://www.regulations.gov/document/FDA-2020-D-1956-0001

This is correct. So much misinformation being spouted here on the spurious grounds that The Guardian is an inaccurate news source.