§ In case where head office of importation / manufacturing premise is located in provincial area, application form can also be filed to that particular provincial public health offices. Except the application form of Temporary Import Food into the Kingdom License. And, if, such foods are empowered to the provinces to control, the provinces are the authorities to approve the application.
http://newsser.fda.moph.go.th/ossc/eng/frontend/fda_main_request_03.php?Submit=Clear&LPage_1=1&LID_1=00127
http://www.fda.moph.go.th/sites/FDA_EN/SitePages/Food.aspx?IDitem=Structure
http://www.fda.moph.go.th/sites/fda_en/SitePages/Howtoapply.aspx