නිල පරිවර්තනයවෙනස් නොකළ පාඨය, Department of Government Printing වෙතින්
The seal of the Institute shall not be affixed to any instrument whatsoever except by the authority of a resolution of the Council and in the presence of two members of the
Council or, of the secretary and such other person as the
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Sri Lanka Institute of Landscape Architects
Council shall authorize for the purpose, who shall sign their names to the instrument in token of their presence and such signing shall be independent of the signing of any person as a witness.