ISO/TS 22002-3:2011规定了维持卫生环境并协助控制食物链中食品安全危害的先决条件计划（PRP）的设计、实施和文件编制的要求和指南。 ISO/TS 22002-3:2011适用于所有组织（包括单个农场或农场组），无论其规模或复杂性如何，这些组织参与食物链的农业步骤，并希望按照ISO 22000:2005，7实施PRP。 2.如果一个组织使用ISO/TS 22002-3:2011作为参考，以进行符合ISO 22000:2005的自我声明或寻求ISO 22000:2005的认证，则需要证明与ISO/TS 22002-3:2011的偏差（即，在进行排除或实施替代措施的情况下），并将其记录在案。预计此类偏差不会影响组织遵守ISO 22000要求的能力。 ISO/TS 22002-3:2011适用于农作物的种植（例如:。 g、 谷物、水果、蔬菜）、活的农场动物（如牛、家禽、猪、鱼）及其产品（如牛奶、鸡蛋）的处理。不适用于采摘野生水果、蔬菜和蘑菇、捕鱼、狩猎等不被视为有组织农业活动的活动。 所有与农业相关的操作都包括在范围内（例如，未加工产品的分拣、清洁、包装、农场饲料制造、农场内的运输）。然而，ISO/TS 22002- 3:2011不适用于在农场场所进行的加工活动（例如加热、吸烟、腌制、熟化、发酵、干燥、腌制、提取、挤压或这些过程的组合）。ISO/TS 22002-3:2011也不适用于进出农场的产品或动物。 根据规模、产品类型、生产方法、地理和生物环境、相关法律法规要求等，农业经营在性质上是多样的。 因此，PRP的需求、强度和性质将因组织而异。根据ISO 22000:2005第8.2条规定的审查程序，已建立的PRP也可能发生变化。ISO/TS 22002-3:2011侧重于PRP的管理要求，而具体PRP的设计则留给用户。PRP的管理包括评估需求、选择满足已识别需求的措施和所需记录。ISO/TS 22002中列出的PRP的具体示例- 3:2011仅供参考，旨在适当考虑生产安全且适合食用的食品的总体目标。 ISO/TS 22002-3:2011有可能被其他愿意根据ISO 22000制定实践规范和其他类型的供应商-买方关系的组织采用。

ISO/TS 22002-3:2011 specifies requirements and guidelines for the design, implementation, and documentation of prerequisite programmes (PRPs) that maintain a hygienic environment and assist in controlling food safety hazards in the food chain. ISO/TS 22002-3:2011 is applicable to all organizations (including individual farms or groups of farms), regardless of size or complexity, which are involved in farming steps of the food chain and wish to implement PRPs in accordance with ISO 22000:2005, 7.2. If an organization is using ISO/TS 22002-3:2011 as a reference for the purpose of making a self-declaration of conformity with or seeking certification to ISO 22000:2005, deviations therefrom (i.e. where exclusions are made or alternative measures are implemented) need to be justified and documented. It is expected that such deviations will not affect the ability of the organization to comply with the requirements of ISO 22000. ISO/TS 22002-3:2011 is applicable to the farming of crops (e.g. cereals, fruits, vegetables), living farm animals (e.g. cattle, poultry, pigs, fish) and the handling of their products (e.g. milk, eggs). It is not applicable to activities such as picking of wild fruits, vegetables and mushrooms, fishing, hunting, which are not considered as organized farming activities. All operations related to farming are included in the scope (e.g. sorting, cleaning, packing of unprocessed products, on-farm feed manufacturing, transport within the farm). However, ISO/TS 22002-3:2011 is not applicable to processing activities carried out on farm premises (e.g. heating, smoking, curing, maturing, fermenting, drying, marinating, extraction, extrusion or a combination of those processes). Neither is ISO/TS 22002-3:2011 applicable to products or animals that are being transported to or from the farm. Farming operations are diverse in nature according to size, type of products, production methods, geographical and biological environment, related statutory and regulatory requirements etc. Therefore, the need, intensity and nature of PRPs will differ between organizations. Established PRPs can also change as the result of the review procedures stated in ISO 22000:2005, 8.2. ISO/TS 22002-3:2011 focuses on the requirements for the management of PRPs, while the design of the exact PRPs is left to the user. The management of PRPs includes assessment of the need, selection of measures that meet the identified needs and required records. The specific examples of PRPs listed in ISO/TS 22002-3:2011 are intended for guidance only, and are aimed for application with due regard to the overall objective of producing food which is safe and suitable for consumption. It is possible for ISO/TS 22002-3:2011 to be applied by other organizations willing to develop codes of practice and other types of supplier-buyer relationship based on ISO 22000.