Hoffman Plastic Compounds v. Nat'l Labor Relations Bd.

Holding that backpay awards to undocumented workers terminated in violation of the National Labor Relations Act ran counter to federal immigration law

Toll v. Moreno

Holding that the Immigration and Nationality Act was a comprehensive regulation of domiciled, nonimmigrant G–4 visa holders and that it preempted Maryland's refusal to grant such persons in-state tuition

Olszewski v. Scripps Health

Holding that state statutes which permitted Medicaid providers to place liens and recover on claims against third parties who caused the Medicaid covered injuries were preempted to the extent the statutes permitted recovery beyond the Medicaid payment

Madeira v. Affordable Housing Foundation, Inc.

Holding that there is nothing to support "an inference that Congress, by enacting IRCA, demonstrated a clear and manifest intent to supersede—at least where illegal aliens are concerned—traditional state tort or labor laws determining the compensatory damages recoverable for personal injuries"

Viva! Internat. Voice for Animals v. Adidas Promotional Retail Operations, Inc.

Noting "wildlife management" is "historically within the traditional police powers of, the states"

Jevne v. Superior Court

Acknowledging commission's reports as evidence of legislative intent

N.L.R.B v. A.P.R.A. Fuel Oil Buyers Group, Inc.

Holding that illegal workers could not collect backpay under the NLRA

Section 151 - Findings and declaration of policy

Finding that "protection by law of the right of employees to organize and bargain collectively safeguards commerce" and declaring a policy of "encouraging the practice and procedure of collective bargaining"

Section 12900 - Short title

Section 1171.5 - Legislative findings

Extending all protections under state law to those who have “been employed” in this state, which includes “all individuals regardless of immigration status”