## 4 Current Regulations for UAS
On the other hand, Uruguay only needs explicit permission from the aeronautical authorities if the flight is for something other than sports or recreation. Bolivia and its Civil Aviation Authority classify airplanes according to their maximum take-off weight; planes from 0 to 199 g are considered small, and planes from 200 g to 35 kg are considered medium. Similarly, the small classification is used for recreational operations and the second for aerial work [67]. In particular, the countries that have more explicit legislation in the Latin American region are Argentina and Brazil, where the former has an explicit regulation that includes more than 70 articles and deals with application areas, weight classification, technical characteristics, specifications of the nature of operation, necessary authorizations, and regulation of different uses [68]. The second controls the flight rules; the registration with the government entity explains the authorizations required for projects that seek to work with UAVs and the certificates that must be obtained [69]. In summary, as seen in Table 2, there are regulations by use in 44.4% of the region and by size in the other 44.5%, some of them being shared in each resolution. Furthermore, Guyana and Suriname do not have any classification like the other members of Latin America, and their regulations are insufficient. Typically, UASs can be placed into groups based on their maximum take-off weight. On the other hand, the European Union Aviation Safety Agency (EASA) has a document called Easy Access Rules for Unmanned Aircraft Systems [70]. This document expresses the rules and procedures of UAS operations and determines three general categories of operation: open, specific, and certified. The first category, called open, has a maximum take-off mass of less than 24 kg. The remote pilot ensures that the UAV is kept at a safe distance from people, that it does not fly over groups of people, and that it has a visual line of sight (VLOS) at all times. It is limited to 120 m from the closest point on the Earth's surface, and the UAV cannot carry dangerous payloads. The second category, called specific, refers to those cases where one of the requirements laid down in the open category is not met. Operations are carried out with an unmanned aircraft with a maximum characteristic dimension of up to 3 m and a typical kinetic energy of up to 34 kJ, less than 150 m above the surface. In the second category, aircrafts are limited to uncontrolled airspace operations. In the third category, some operations shall be grouped in the certified category only where the operation is carried out under any \begin{table}
\begin{tabular}{c c} \hline \hline
**Type of Classification for Regulation** & **Countries** \\ \hline Use & Mexico, El Salvador, Honduras, Venezuela, Ecuador, Peru, Paraguay, Uruguay \\ \hline Takeoff mass & Costa Rica, Guatem, Nicaragua, Panama, Colombia, Chile, Bolivia \\ \hline Fully regulated & Argentina, Brazil \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Latin America overview of the current status of UAV regulations and classification. of the following conditions: over the assembly of people, when it involves the transport of people, or involves the carriage of dangerous goods that can cause high risk to third parties in the event of an accident [70]. As in Europe, the Asian continent has its regulations on UAS. On the website [[https://drone-laws.com](https://drone-laws.com)]([https://drone-laws.com](https://drone-laws.com)) (accessed on 20 July 2022), there is a complete database updated by volunteers with creative commons licenses, discriminated by countries and their legislation. Almost all have similar regulations on aircraft types, operations, and limitations [71]. The Colombian statute is controlled by the Unidad Administrativa Especial de Aeronautica (UAEAC), which governs the use of UAVs under the RAC 91 regulations, specifically in Appendix 13 [72].