In August 2014, National Science Foundation (NSF) has awarded $20 million to two separate testbeds, to support computing applications and related experiments for research, as part of the NSF CISE Research Infrastructure [2]. Called Chameleon [1] and CloudLab [3], the two testbeds have been in use since then; and have been awarded a second round of funding in September 2017. Research scientists and faculty in academic institutions, as well as staff of national labs, independent museums, libraries, professional societies directly associated with research or educational activities, and other similar institutions can utilize these testbeds.