Yes, the U.S. Department of Energy is limiting disability rights. As shown in the article, in May of this year the DOE has removed accessibility requirements in section 504 of the Rehabilitation act. This means that federally funded construction projects will not enforce as many accessibility requirements.
I have found another article that also talks about this each, which they said,
"DOE said the Section 504 rule, which was written by the then-Department of Health, Education and Welfare and incorporated by Congress into the Rehabilitation Act of 1973, is unnecessary because of other federal requirements, so it is fast-tracking the rule rescission. "
They agree with what the original article said, and proved that there laws had been in place since at least 1980. They also go on to say that this is part of a broader rollback of civil rights by the Trump Administration.
I couldn't find any sources through the official Department website, but I have found multiple articles that all claim that the DOE is making rollbacks on this section, including the one I quoted above.
https://www.facilitiesdive.com/news/doe-to-drop-Section-504-building-accessibility-rule-DREDF/753325/