# What are life cycle stages? #### Customer Company requesting a PCF on CO2 AI Product Ecosystem #### Tier 1 supplier Company submitting its PCF data on CO2 AI Product Ecosystem #### Tier 2 supplier Company providing the supplier with raw material (or packaging) needed to manufacture the studied product **Life Cycle stages – GHG Protocol classification** #### Material acquisition & pre-processing Starts with resources extraction, ends with product components entering production facility of tier 1 supplier. Includes between others: * Mining/extraction of material (e.g., natural resources) * Cultivation and harvesting of trees or crops * Application of fertilizers * Pre-processing (processing of material by tier 2 suppliers) * Transportation from tier 2 to tier 1 suppliers #### Production Starts with product components entering production facility of tier 1 supplier, ends with finished product exiting production facility. Includes between others: * Energy consumed from manufacturing activities * Energy consumed from preparation activities (for distribution), e.g., packaging * Fugitive emissions from production process (e.g., physical or chemical processing) – Not included in calculator prototype * Treatment of waste created during production – Not included in calculator prototype * Transport of semi-finished products between manufacturing processes – Not included in calculator prototype #### Distribution & storage Starts with finished product exiting production facility of tier 1 supplier, ends with product entering customer hands. Includes between others: * Storage heating or refrigeration – Not included in calculator prototype * Transportation from production facility to storage location * Transportation between storage locations * Transportation from tier 1 supplier to customer --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://knowledge.co2ai.com/provide-product-emissions-data/what-are-life-cycle-stages.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.