The Acting Administrator of the Drug Enforcement Administration is issuing this order to extend the temporary schedule I status of a synthetic cathinone, 1-(1,3-benzodioxol-5-yl)-2- (ethylamino)pentan-1-one (N-ethylpentylone, ephylone), including its optical, positional and geometric isomers, salts, and salts of isomers. The schedule I status of N-ethylpentylone currently is in effect until August 31, 2020. This order extends the temporary scheduling of N- ethylpentylone for one year, or until the permanent scheduling action for this substance is completed, whichever occurs first.