156. As long as at least seven hundred and forty trees to the hectare are kept, lands replanted in trees except those situated in a city, town or village municipality, shall retain, for a period of thirty years, the assessment which they had before the planting; at the expiration of such period of thirty years, the municipal assessment of such plantations, provided they remain as wooded land, can only be changed every ten years.
R. S. 1964, c. 92, s. 164; 1971, c. 50, s. 124; 1977, c. 60, s. 25.