Environmental regulation stringency — emissions caps, standards, phase-out mandates, carbon pricing, renewable portfolio standards.
Sector-specific licensing regimes, concentration / quota allocation, state-controlled entry (energy, telecoms, healthcare, banking).
Targeted industrial and sectoral subsidies (renewable energy, chip manufacturing, agriculture, green hydrogen, etc).
Policy posture toward energy supply security — domestic production capacity, import diversification, strategic reserves, nuclear stance, fossil-fuel mix discipline.
California's economy-wide cap-and-trade programme, designed by CARB under AB 32 authority and launched on 1 January 2013 with the first auction in late 2012, established a declining annual cap on covered greenhouse-gas emissions and quarterly allowance auctions linked to Quebec under the Western Climate Initiative. Compliance was extended to power generation and large industry in 2013 and to fuel distributors in 2015, with auction proceeds flowing to the state's Greenhouse Gas Reduction Fund.
Per invariant 3, reforms are scored by what they did on each channel-separated axis, not by the party that enacted them. This fingerprint is how the policy-match engine finds historical analogues.
Explicit links are curated by the author. Inferred links are hypotheses in the library that test the same axes this policy moved — the framework's answer to "what does the data say about a policy like this?".
Ranked by axis-fingerprint overlap with this policy. Direction match bolded — those are the closest historical analogues. Shape of the match is what drives policy-outcome comparison, not the country or party label.