Analysis of information sources in references of the Wikipedia article "Improvement commissioners" in English language version.
The Public Health Bill having received the Royal Assent on the 10th of August 1872, the provisions with regard to the constitution of the several sanitary districts and authorities took effect from that day.
Local and Personal Act, 7 & 8 Victoria I, c. xciv: An Act for lighting, paving, cleansing, widening, and improving the Streets of the Town or Parish of Wells in the County of Norfolk; for removing and preventing Nuisances therein; and for making new Streets or Roadways.