California Proposition 65: Warning: Burning this manufactured firelog results in emission that can expose you to chemicals including carbon monoxide, soot, smoke and other combustion by-products, which are known to the State of California to cause cancer, birth defects or other reproductive harm, and/or other adverse health effects. For more information go to www.p65warnings.ca.gov., Open carefully to avoid tearing inner firelog wrappers. Air Quality Advisory (Nov-Feb): Use of this and other solid fuels may be restricted at times by law. Please check 1-877-4NO-BURN or http://www.877noburn.org before burning.