The term certification or trust marks, alludes to a system or its component's  capacity to meet a formal arrangement of safety or execution guidelines. Benchmarks for safe operation are kept up by government and private associations that are perceived as authorities in the zone of item security. Manufacturers utilize the accreditation to guarantee clients about the quality of their product. After the products completes the accreditation tests, the manufacturer is permitted to name it with a recognizing mark as  a verification of the item.

FCC

The FCC Declaration of Conformity or the FCC certification mark utilized on electronic items made or sold in the United States which ensure that the electromagnetic impedance from the gadget is under points of confinement affirmed by the Federal Communications Commission.

The certification is compulsory for IT hardware like PCs, switch mode power supplies, screens and so forth., TV receivers, cable system devices, low-power transmitters, unlicensed personal communication devices and industrial, scientific, and medical devices that emit RF radiation.

en.wikipedia.org/wiki/FCC_Declaration_of_Conformity

UL

UL is the shortened form for Underwriters Laboratories, which is the main third party association in the United States and the biggest in North America. As a non profit organisation, UL has been assessing items in light of a legitimate concern for public wellbeing since 1894. 
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CE

CE certification alludes to an item's qualification to be sold in the EU, which is short for the European Union. The exchanging district characterized by the EU is known as the European Economic Area (EEA).An item bearing the CE Mark has been opted to the greater part of the important guidelines that the EU specifies for the safety and quality of the products. 
advik.net/blog/security-camera-technology/do-we-really-need-ce-certification-for-security-camera

ISO

ISO is short for International Standards Organization. Established in 1946, ISO is a worldwide association made out of national benchmarks bodies from more than 75 nations. For instance, ANSI (American National Standards Institute) is an individual from ISO. The ISO additionally created guidelines for guaranteeing the nature of fabricated merchandise. These measures are quality models, which can be utilized by clients to assess the ability of a supplier to reliably convey quality items and administrations.

RoHS

RoHS certification, otherwise called Lead-Free, remains for Restriction of Hazardous Substances. RoHS, otherwise called Directive 2002/95/EC, began in the European Union and confines the utilization of six unsafe materials found in electrical and electronic items. RoHS sways the whole electronics industry and numerous electrical items also. http://www.rohsguide.com/

These are some certification you can find on the quality products and security cameras. But is not necessary that all are needed at the same time to mark as the quality. It depends where the product is being sold or manufactured.