On August 23, 2007, the U.S. FDA proposed a new regulation that would call for the testing, rating, and disclosure of a product's level of UVA protection. The new regulation would also require a new label warning consumers about the risk of skin cancer linked to sun exposure. Products not submitted for testing would be stamped "No UVA protection" if the new rules are passed. The public and manufacturers have 90 days to comment on the proposal.

Currently, U.S. manufacturers only indicate the level of UVB protection by sun protection factor, or SPF, rating. The new UVA system would use a scale of one to four stars, with four stars representing the highest available level of UVA protection.

The U.S. FDA's proposal comes in the wake of a European Union initiative requiring sunscreen manufacturers in the European Union ensure product lines state (by the end of Summer 2008) whether they provide low, medium, high or very high UVA protection, whilst giving the SPF against UVB rays. Health Canada said it will be monitoring developments from the FDA's proposal over the next three months.