The report investigates foreign influence registration laws, exploring their evolution, mechanisms, and applications in various contexts such as Russia, Nicaragua, and Hungary. While some countries aim to mitigate undue foreign influence, the laws are often overbroad, targeting organisations receiving foreign funding or engaging in public policy advocacy. This creates challenges for nonprofits by imposing burdensome requirements and labelling them as foreign agents. Through a detailed typology, the report contrasts restrictive and proportional implementations and offers recommendations for legal responses, stakeholder mobilisation, and advocacy campaigns to uphold international human rights standards.