Alivia Parker, 21 months, runs through circles of spraying water on a 100-degree day in Montgomery, Ala., Tuesday, June 14, 2011. Parker is wearing sunscreen with an SPF of 100. Federal regulators ... more 
Alivia Parker, 21 months, runs through circles of spraying water on a 100-degree day in Montgomery, Ala., Tuesday, June 14, 2011. Parker is wearing sunscreen with an SPF of 100. Federal regulators will require sunscreen manufacturers to test their products' effectiveness against sun rays that pose the greatest risk of skin cancer. Under new rules, manufacturers also will have to follow stricter guidelines when describing how well their products block ultraviolet B rays. (AP Photo/Dave Martin) less 
1 / 1
Associated Press | Photo By Dave Martin
Tue, Jun 14, 2011 12:58 PM EDT