Dr. Wood is accredited by the USDA/APHIS and the State of Kansas to provide health certificates for interstate and international travel. Certificate experiation is variable depending on destination and travel company regulations.   Some airlines have more stringent requirements, however. We recommend contacting your air carrier 30-60 days prior to travel to ensure proper timing of health certificate examinations.  Also be sure to fully understand your air carrier's requirements for travel kennel size and construction.