33 Miss. Code. R. 211-4.1
The lessee or assignee of the property affected shall provide and maintain the necessary protection and preserve a minimum of fifteen (15) credit units (determined in accordance with Table A and Table B attached) of existing trees per acre (or pro-rata portion of an acre) excluding the acreage in any building's foot print. In the event existing trees do not meet the minimum credit units or existing trees were removed during the construction process, additional trees must be planted until a minimum of 15 credit units is met. The tree density shall be calculated by multiplying the number of trees of each diameter by the unit credits. This calculation shall be made for both trees saved (Table A) and trees planted (Table B).
33 Miss. Code. R. 211-4.1