This document discusses ICH guidelines for stability testing and protocols. It provides an overview of ICH partners and guidelines related to quality, safety, and efficacy. It then focuses on ICH guideline Q1, which provides guidance on stability testing of new active pharmaceutical ingredients and finished pharmaceutical products. Key aspects covered in Q1 include stress testing, selection of batches, storage conditions, container closure systems, and photo stability testing. The document also discusses bracketing and matrixing designs, stability protocols and reports, and requirements for stability results and re-test periods.