The phrase "arrangements that exist" is correct and usable in written English.
You can use it when referring to specific arrangements or agreements that are currently in place or have been established.
Example: "We need to review the arrangements that exist between our two companies to ensure everything is still aligned."
Alternatives: "existing arrangements" or "current arrangements".
But it emerged last month that NHS England had agreed to fund proton beam therapy for Ashya under the reciprocal healthcare arrangements that exist within the EU.
The diversified intergenerational living arrangements that exist in Chinese cities at this stage provide strong evidence.
In this endeavor, the obligation to honor one's agreements is assumed independently of any appeal to the social contract, and the aim is to argue that the sorts of political and legal arrangements that exist between the citizen and the state are in fact agreements of the sort that would invoke the obligation.
Part of the investigation will be "a review of the security measures that were in place not only at LAX but, I think, a review of the security arrangements that exist in other airports as well," he said.
A considerable body of scientific literature now provides detailed descriptions and analyses of community-based institutional arrangements that exist in human societies in order to regulate unbridled self-interest, and which, as a consequence, helps make orderly social life possible (e.g., NRC 1986; McCay and Acheson 1987; Berkes et al. 1989; Feeny et al. 1990; Ostrom 1990; Bromley 1992).
"Due to the close working relationships and partnership arrangements that exist between Dyfed Powys Police and both local authorities, it is not appropriate for the force to carry out the enquiry.
Given the multi-jurisdictional arrangements that existed at the time, and the fact that there was no cost-recovery system in place, the costs of the process would have been subsumed into the budgets of the federal and state fisheries management agencies.
Instead, he proposed a measure that would split the Commission on Public Integrity into separate ethics and lobbying commissions, an arrangement that existed two years ago.
The convention seeks to protect the status quo, in other words the arrangement that existed before a child was improperly removed is the one that should persist under international law.
It agreed to direct air links with Taiwan through a deal made by business people representing the airlines of the two territories, renewing an arrangement that existed when Hong Kong was British.
In his memoir, David Rockefeller describes the almost feudal arrangement that existed: "Eventually the family accumulated about 3,400 acres that surrounded and included almost all of the little village of Pocantico Hills, where most of the residents worked for the family and lived in houses owned by Grandfather".
