One development at the provincial administration level was the establishment of the sanitary district administration and the provincial sanitary district administration
The function of the sanitary district or Sukhaphiban was to oversee the sanitary provisions for both urban and rural districts
After the Tha Chalom sanitary district was initiated, the Sanitary Management Act was launched in 1908
Under this Act, the Sukhaphiban was divided into 2 types: Sukhaphiban Muang' at the town level and 'Sukhaphiban Tambon' at the Subdistrict level
Since being first introduced to Thailand in 1897, decentralisation has been the subject of doscussion
And later, the 1994 TAO Act was required because the structure of the Tambon council and SAO did not genuinely decentralise nor provide or result in the desired level of opportunities for the local people to participate