Major League Baseball's crackdown on foreign substances will ramp up on June 21.

"In recognition that the existing on-field enforcement process has not deterred an increasing number of violations, MLB has issued new guidance to Major and Minor League Umpires to serve as a uniform standard for the consistent application of the rules," a press release read, "including regular checks of all pitchers regardless of whether an opposing Club's manager makes a request."

All substances will be punished the same. Pitchers caught using foreign substances, whether Spider Tack, pine tar or a sunscreen mixture, will receive a 10-game suspension.