This article is aimed at developing a proposal of indicators to integrate climate change adaptation into the process of designing legislation and assessing the effectiveness of this legislation in adapting the society, the economy and the environment to climate change. Based on a review of climate change adaptation monitoring indicators used in selected European countries, an assessment of potential indicators according to the proposed criteria was carried out and a proposed list of indicators for monitoring climate change adaptation in selected economic sectors was developed for use in the ex-ante assessment of legislation. The proposed set of indicators can be used for ex-ante assessment of legal acts in terms of implementation of climate change adaptation requirements - both to determine the values of indicators selected for a given sector that are relevant to climate change adaptation, and then to monitor changes in these indicators to assess the effects of implementing legal regulations in terms of supporting the state's climate change adaptation policy.