4 kinds of kamma

Four kinds of kamma:

1. There is dark kamma with dark ripening

2. There is bright kamma with bright ripening

3. There is dark-and-bright kamma with dark-and-bright ripening

4. There is kamma that is not dark and not bright with neither-dark-nor-bright ripening that conduces to the exhaustion of kamma

(Majjhima Nikaya 57, Anguttara Nikaya 4.235)

References

• The Complete Book of Buddha's Lists -- Explained. David N. Snyder, Ph.D., 2006.
• http://www.thedhamma.com/