Chapter 7 shifts the analytical focus from static governance structures to the dynamic conditions under which democratic governments liberalize labor immigration policy for low-skilled occupations (LILSO). While the previous chapters established the "what" of LILSO governance, this chapter initiates the "when" and "how" of policy reform. It introduces three distinct analytical models designed to identify the drivers of liberalization across different contexts: a generic model focussing on the policy reform itself (Model #1), and two context-specific models focusing on liberalization within less restrictive (Model #2) and more restrictive (Model #3) governance types. The chapter details the construction of the case population, comprising 83 policy changes across 29 democracies between 1990 and 2019. Utilizing the DEMIG dataset and OECD reports, the author operationalizes "Liberalized Policy" (LIBPOL) as a crisp set based on five criteria: quantity of migrants, eligibility requirements, procedural complexity, migrant choice, and regulatory control. Methodologically, the chapter prepares the groundwork for fuzzy-set Qualitative Comparative Analysis (fsQCA) by conceptualizing the outcome sets and defining calibration thresholds. Preliminary findings from the descriptive statistics reveal that most reforms are mid-level changes focusing on work permits and recruitment programs. Notably, the analysis suggests that liberalization often occurs regardless of major external shocks like the 2008 financial crisis. By intersecting policy change with the previously established governance models (LIBNUM and LIBRIGHTS), Chapter 7 provides the necessary framework to explore whether the recipes for liberalization differ depending on a country’s baseline restrictiveness, setting the stage for the configurational analysis in subsequent chapters.