ISO 45001:2018 is the international specification for an Occupational Health & Safety management system (OH&S). It specifies requirements for establishing a health and safety policy, determining risks and hazards of products/activities/services, planning objectives and measurable targets, implementation and operation of programs to meet objectives and targets, with continual improvement through corrective action and management review.

ISO 9001:2015 sets out the criteria for a quality management system and is the only standard in the family that can be certified to. This standard is based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement. Using ISO 9001:2015 helps ensure that customers get consistent, good-quality products and services, which in turn brings many business benefits.

ISO 14001:2015 is the international specification for an environmental management system (EMS). It specifies requirements for establishing an environmental policy, determining environmental aspects and impacts of products/activities/services, planning environmental objectives and measurable targets, implementation and operation of programs to meet objectives and targets, checking and corrective action and management review.

STMC stands for the Standardized Test Methods Committee. The International Imaging Technology Council (Int'l ITC) administers the STMC program, assures its proper usage and polices against misuse of the STMC program and logos. For more than a decade, the STMC symbol has been the remanufacturing industry's indicia of quality. The test methods are used to evaluate toner printer cartridge performance. STMC uses certain ASTM test methods to evaluate a finished cartridge in comparison to another cartridge, typically an OEM cartridge.

R2 Certification, also known as Responsible Recycling Certification, provides verification of Clover’s environmentally responsible, safe, and transparent management of toner cartridges, cell phones, and other consumer electronics. R2 Certification is facility specific and has been awarded Clover Environmental Solutions (CES) Mexicali, Mexico collections processing operation center.