3. A permit holder must comply with the following conditions when tapping maple trees:(1) maple trees may be tapped once a year only, between 1 January and 30 April;
(2) only maple trees at least 20 cm in diameter at 1.30 m above the highest ground level may be tapped;
(3) the maximum number of tapholes in the same maple tree is determined according to the diameter of the tree, as follows:
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Diameter of maple tree at 1.30 m above ground Maximum number
of tapholes
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20 to 39 cm 1
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40 to 59 cm 2
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60 to 79 cm 3
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80 cm and over 4
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Where 2 or more tapholes are drilled, they must be positioned evenly around the tree;
(4) the taphole must be drilled using a bit not more than 11 mm in diameter and must not be more than 6 cm deep, including bark thickness;
(5) no control product may be inserted into a taphole unless the control product has been registered under the Pest Control Products Act (S.C. 2002, c. 28);
(6) all spouts must be removed each year at the latest on 1 June, with care taken not to tear the bark from the tree;
(7) tubing must be installed, replaced and maintained without damage to the trees ; and
(8) all worn or unused material must be recovered and disposed of in such a manner as to ensure the premises are kept clean.