Complex sentence: In 1983, the DPMA withdrew its opposition to the standard, citing the responsiveness of the committee to public concerns, and a National Bureau of Standards study concluded that the proposed standard would present few problems.
Split into simpler sentences: In 1983, the DPMA withdrew its opposition to the standard, citing the responsiveness of the committee to public concerns. In the same year, a National Bureau of Standards study concluded that the proposed standard would present few problems.