Halal certifications are provided by a number of agencies in the United States. Depending on how the certification will be used for domestic or international export, the certification may need to be done by a qualified entity. If it's for domestic use a local agency with proper knowledge, training and background can issue a halal certificate. If the certificate is going to be used for export then the halal certifier needs to be accredited by the country the halal product is being exported to. A company that needs to certify its product must do their due diligence when hiring a certifier. There are a number of halal certifiers in the US including ISWA Halal; ISA Halal; Halal Monitoring Services (HMS), based out of Chicago, Illinois; the Halal Food Standards Alliance of America (HFSAA), based out of Oakland, California; and Halal Watch World, based in New York. Another agency that can help companies identify and screen the proper halal certifier is the US Halal Consultants based in Fairfax, Virginia.