What is the nicotine content of camel Turkish silver?

Supposedly, the limit on the nicotine content in the US is something like 1 to 1.5 mg/ per cigarette. However, cigarettes like Newports seem to have a stronger nicotine content than say Camel Menthols, so based on personal experience, I'd say a Camel Filter has about 1.3 mg of nicotine +/- .1 mg.