The NYT is typically vague about which specific rule change they refer to in each case (they could have easily made each element the appropriate link to the Fed

The NYT is typically vague about which specific rule change they refer to in each case (they could have easily made each element the appropriate link to the Federal Register with appropriate details, and counting things like the never-ratified Paris climate agreement as a "rule change" is just plain intellectually dishonest), but the vast majority of Obama-administration rules that have been changed or undone thus far were only put in place in the last 2 months of the administration, after he was a "lame duck". Any such regulations viewed as meaningful and beneficial should have been implemented in the first 10 weeks of his administration, not when his administration was 99% over with. Lame-duck regs are generally just political payoffs.