නිල පරිවර්තනයවෙනස් නොකළ පාඨය, Department of Government Printing වෙතින්
The Authority shall maintain a Directory of importers, manufacturers and suppliers of construction materials and construction components in the manner as may be determined by the rules made by the Authority. Such
Directory shall be available free of charge for inspection at the office of the Authority by any person during office hours.