Table 29. Treatment opportunity code definitions for Tables 30 and 31. 



10 Harvest - high risk 



11 Harvest - low risk 



12 Commercial thinning 



13 Overstory removal 



14 Two storied stand (overstory, harvest - high risk; understory, manageable) 



15 Two storied stand (overstory, harvest - low risk; understory, manageable) 



20 Precommercial thinning 



21 Stand conversion 



22 Sanitation 



23 Regeneration of understocked areas 



30 No treatment due to productive condition 



32 No treatment - inoperable 



33 No treatment - deferred until merchantable 

 40 Unknown - poor crowns, good growth 



No Overlap 



12, 13 Commercial thinning, overstory removal 



13, 20 Overstory removal, precommercial thinning 



13, 20, 23 Overstory removal, precommercial thinning, regeneration of 



understocked areas 



13, 21 Overstory removal, stand conversion 



13, 23 Overstory removal, regeneration of understocked areas 



13, 33 Overstory removal, no treatment - deferred until merchantable 



20, 23 Precommercial thinning, regeneration of understocked areas 



22, 23 Sanitation, regeneration of understocked areas 



22, 33 Sanitation, no treatment - deferred until merchantable 



Possible Overlap 



12, 13, 22 Commercia] thinning, overstory removal, sanitation 



12, 22 Commercial thinning, sanitation 



13, 20, 22 Overstory removal, precommercial thinning, sanitation 

 13, 20, 22, 23 Overstory removal, precommercial thinning, sanitation, 



regeneration of understocked areas 

 13, 22 Overstory removal, sanitation 



13, 22, 23 Overstory removal, sanitation, regeneration of understocked 



areas 

 13, 22, 33 Overstory removal, sanitation, no treatment - deferred until 



merchantable 

 20, 22 Precommercial thinning, sanitation 



20, 22, 23 Precommercial thinning, sanitation, regeneration of 



understocked areas 



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