The BFTZ is also announced in the government gazette as an "INDUSTRIAL ZONE" officially granted by Ministry of Industry. It is concurrently endorsed as a "PURPLE AREA" by Provincial Government of Samut Prakarn.
According to Town Planning Regulation, land is classified into 10 types based on their utilization such as for residential, agriculture, rural community, industry, art and cultural etc. Each type has specific color indicated. Among those types of land, land utilization for industrial purposes is classified as PURPLE AREA.
BFTZ is, then, a designated area where factory is allowed to establish and to operate by the merit of the industrial zone proclamation, all procedures of seeking permits and licenses are relief from regulation compliance.