Russian Federation
Use of customs brokers
In Russian Federation there is no obligation to use a customs broker.
See Chapter 55 «Customs representative» of the Treaty on the Customs Code of the Eurasian Economic Union of 11 April 2017:
http://www.eurasiancommission.org/ru/act/tam_sotr/dep_tamoj_zak/SiteAssets/Customs%20Code%20of%20the%20EAEU.pdf
Chapter 60 «Customs representative» of the Federal Law of the Russian Federation No. 289-FZ of 3 August 2018 «On customs regulation in the Russian Federation and amendments in certain legislative acts of the Russian Federation»:
http://pravo.gov.ru/proxy/ips/?docbody=&nd=102479197&intelsearch=%F4%E7+289%2C+2018