To identify board grades the paragraph number of the NLGA rules under which the lumber is graded must be shown in the grade mark. Paragraph 113 is equivalent to WWPA rules and paragraph 114 is equivalent to WCLIB rules. When graded in accordance with WWPA or WCLIB rules, the grade mark will not contain a paragraph number.

To identify board grades the paragraph number of the NLGA “Standard Grading Rules for Canadian Lumber” under which the lumber is graded must be shown in the grade mark. Paragraph 113 is equivalent to WWPA “Western Lumber Grading Rules 2017” and paragraph 114 is equivalent to WCLIB “Grading Rules for West Coast Lumber”. When graded in accordance with WWPA or WCLIB rules, the grade mark will not contain a paragraph number.