 The increasing use of renewable energy sources in electricity generation has led to changes, in the rules governing how power systems operate. These changes have resulted in new requirements for ancillary services from renewables, such as voltage ride-through, active power restoration, frequency stability regulation, and more. A survey was conducted comparing these requirements across various countries, with the aim of identifying the differences between them. Factors such as the type of power system, technological advancements, and renewable energy penetration levels were taken into account when determining the parameters used to set the requirements. This survey provides a useful tool for understanding the differences between the requirements for renewable energy interconnections in different countries. This article was authored by Yendi G. Landera, Oscar C. Zavaios, Rafael C. Neto, and others.