The phrase "to accompany these regulations" means to go together or be linked with these rules. It suggests that certain actions, documents, or guidelines will be provided or followed alongside the mentioned regulations. Full definition
In this article on Canadian bitcoin law, I will cover provincial legislation and accompanying regulations pertaining to companies operating in the bitcoin space. (coindesk.com)
We determined those targets to be (according to the EPA's Regulatory Impacts Analysis accompanying the regulation), 0.4864 GtC in 2020 and 0.4653 GtC in 2030. (cato.org)
Additionally, although private schools are not required to follow the procedures set out in the Education Act and accompanying regulations for exceptional pupils, they are required to follow the Ontario Human Rights Code and so can not discriminate against students and must accommodate special needs to the point of «undue hardship» — unless the contract with parents requires the school to provide specific accommodations. (schumanlaw.ca)