“Refers to the evaluation of the procedures that are followed in allocating outcomes.” (Grandey & Cordeiro)
“The element of justice concerned with the application of laws, rather than with the content of the laws themselves.” (Blackburn, 2003).
“[T]he perceived fairness of the procedures used to determine outcomes.” (Cropanzano & Greenberg, 1997).

Grandey, A., & Cordeiro, B. (2002, October 09). Family-Friendly Policies and Organizational Justice, A Sloan Work and Family Encyclopedia Entry. Chestnut Hill, MA: Boston College. Procedural Justice. (2003). In Simon Blackburn, (Ed.), The Oxford dictionary of philosophy in religion and philosophy. UK: Oxford University Press, Inc. Internet Explorer. (13 June 2003). Cropanzano, R., & Greenberg, J. (1997). Progress in organizational justice: Tunneling through the maze. In C. L. Cooper & I. T. Robertson (Eds.). International Review of Industrial and Organizational Psychology (Vol. 12, pp. 317-372). New York: Wiley.