Section 11-8-8-2-A-1-III - Success Standards and Measurement FrequencyA. Ground Cover 1. Ground cover shall be considered acceptable if it is at least equal to ninety percent of the approved success standard at a ninety percent statistical confidence level (one sided test with a .10 alpha error) for the last year of the five year responsibility period. The success standard for commercial forest land ground cover shall be a ground cover density of seventy percent.2. The aggregate of areas with less than seventy percent ground cover must not exceed five percent of the release area. These areas must not be larger than 1 acre and must be completely surrounded by desirable vegetation which has a ground cover of seventy percent. Areas void of desirable vegetation may not be larger than one quarter of an acre and must be surrounded by desirable vegetation which has a ground cover of seventy percent.3. The ground cover shall be sampled once during the last year of the five year responsibility period.4. No more than thirty-five percent of the stand can consist of volunteer species not listed in Addendum T.B. Tree and Shrub Stocking Rate1. The stocking rate for trees and shrubs shall be determined on a specific permit basis with consultation and approval of the Mississippi Forestry Commission. The five year responsibility period may begin when the following requirements are met. a. The tree or shrub shall be in place at least two growing seasons.b. The tree or shrub shall be alive and healthy.c. The tree or shrub shall have at least one-third of its length in live crown.d. The number of woody plants established shall be equal to or greater than ninety percent of the stocking rate approved in the permit.2. The tree and shrub stocking rate shall be sampled again during the last year of the five year responsibility period.3. The stocking shall be considered successful if it is equal to or greater than ninety percent of the stocking rate approved in the permit with ninety percent statistical confidence at the time of final bond release. At least eighty percent of the trees and shrubs used to determine success shall have been in place for sixty percent of the applicable minimum period of responsibility. The operator may not interplant trees within two years of doing sampling for final release.11 Miss. Code. R. 8-8-2-A-1-III