Franklin Delano Roosevelt proposed a plan to bring about the recovery of the United States from the effects of the Great Depression: Relief, Recovery, and Reform

Animal testing, an abbreviation for, reduce, replace, refine

Three Rivers Stadium, a multipurpose sports stadium and event facility located in Pittsburgh, Pennsylvania, USA was demolished in 2001

The three Rs, a widely-used abbreviation for the basic elements of a primary school curriculum: reading, ’riting (writing), and ’rithmetic (arithmetic)

The waste hierarchy, summed up in the slogan reduce, reuse, recycle - reduce consumption, reuse manufactured products, and recycle raw materials