Player representatives to the union voted Friday to implement testing for human growth hormone for the 2014 NFL season. HGH testing was originally agreed upon in 2011, but the players have balked at the science in the testing and the appeals process for positive tests.

They also approved a league proposal to significantly increase the threshold for positive marijuana tests. Some players have complained that the NFL threshold of 15 nanograms per milliliter is so low that anyone within the vicinity of people smoking marijuana could test positive. The threshold has been increased to 35 ng/ml.

via Associated Press