Banned in California
Source: Hacker News
Banned in California
A visual guide to the industrial processes you can no longer permit in the state of California — and the grandfathered facilities that still can.
“If I wanted to build a new car factory, I literally couldn’t paint the cars.”
Permitting categories
- Effectively impossible
- Extremely difficult
- Restricted / heavily regulated
Every component in your pocket requires an industrial process that’s nearly impossible to permit in California today
Your smartphone contains materials processed through semiconductor fabrication, chemical etching, metal anodizing, glass tempering, and electroplating — none of which you could start a new facility for in California without years of litigation.
Scroll to explore
Semiconductor Fabrication (7 nm/5 nm) – Impossible
The main processor requires ultra‑clean rooms, toxic gases (arsine, phosphine), and chemical etching. No new fabs have been built in CA in over a decade. Intel, TSMC, and Samsung all build elsewhere.
Aluminum Anodizing & CNC Machining – Impossible
The aluminum frame is anodized using sulfuric‑acid baths, generating hazardous waste. Anodizing facilities face extreme permitting hurdles for wastewater and air emissions.
Lithium‑Ion Cell Manufacturing – Impossible
Battery cells require electrode coating with toxic solvents (NMP), electrolyte handling, and formation cycling. This is exactly why Tesla’s Gigafactory went to Reno.
PCB Etching & Component Soldering – Extremely Difficult
Printed circuit boards are etched with ferric chloride or ammonium persulfate. Soldering uses flux chemicals. These wet‑chemical processes face stringent air‑quality and wastewater permits.
Optical Lens Coating & Sensor Fab – Impossible
Camera lenses need vacuum‑deposition coatings, and image sensors are semiconductor devices. Both require processes identical to chip fabrication.
Glass Tempering & Chemical Strengthening – Extremely Difficult
Gorilla‑Glass‑style displays need ion‑exchange chemical baths at 400 °C+. The furnaces and chemical handling require extensive permitting.
RF Component Fab & Gold Plating – Extremely Difficult
Wireless antennas and RF components require electroplating with gold, copper, and other metals. Electroplating operations generate heavy‑metal waste and cyanide compounds.
Building an EV requires metal forging, battery manufacturing, painting, and chip fabrication — all processes that drove Tesla to build in Nevada and Texas
Tesla’s Fremont factory was the former NUMMI plant (GM/Toyota, operating since 1962). It was grandfathered in. When Tesla needed to expand battery production, they built the Gigafactory in Reno, Nevada — not California — because the permitting for battery‑cell manufacturing was effectively impossible. The Cybertruck factory went to Austin, Texas.
Scroll to explore
Automotive Paint Shop – Impossible
A modern auto paint shop emits volatile organic compounds (VOCs) during primer, base‑coat, and clear‑coat application. The Bay Area AQMD makes permitting a new paint shop nearly impossible. This is the classic example of what you can’t do in CA.
Lithium‑Ion Cell Manufacturing – Impossible
Cell manufacturing uses NMP solvent for electrode coating, handles flammable electrolytes, and requires formation cycling that generates heat and gases. Tesla chose Reno for the Gigafactory specifically because of California’s permitting environment.
Metal Stamping, Forging & Die Casting – Impossible
Tesla’s “Giga Press” mega‑casting machines melt and inject aluminum at extreme temperatures. Foundry operations generate metal fumes, require massive energy, and face severe air‑quality restrictions in CA.
SiC/GaN Power Semiconductor Fab – Impossible
Power electronics for EVs use silicon‑carbide chips that require the same fabrication infrastructure as CPUs — clean rooms, toxic gases, acid etching, and enormous water consumption.
Copper Winding & Magnet Production – Extremely Difficult
Electric motors need precision‑wound copper coils and rare‑earth permanent magnets. Magnet production involves processing neodymium and other rare earths with hydrochloric acid.
Float Glass Manufacturing – Extremely Difficult
Automotive glass starts as float glass produced in continuous furnaces at 1500 °C+, then tempered and laminated with chemical treatments. These furnaces run 24/7 for years.
Copper Drawing & Connector Plating – Extremely Difficult
A modern EV contains miles of copper wiring with PVC insulation (extrusion) and gold‑ or tin‑plated connectors (electroplating). Both processes face heavy environmental regulation.
Iron Casting & Brake … (content truncated)
End of cleaned markdown.
Manufacturing
- Brake rotors – cast‑iron components produced in foundries.
- Brake pads – sintered metallic compounds.
Foundry operations are among the most difficult processes to permit in California.
Restricted
Rubber Vulcanization
Tire manufacturing involves sulfur vulcanization of rubber and steel‑belt production. Chemical emissions from vulcanization are subject to strict regulation.
Building a warship requires every banned process at massive scale — and there’s exactly one yard on the West Coast that can do it.
General Dynamics NASSCO in San Diego is one of only a handful of shipyards in the United States capable of building large naval vessels. Operating since 1960, it is grandfathered in. If it closed, a replacement shipyard could not be built in California today—the steel work, welding, painting, and heavy‑metal fabrication would never obtain permits.
Scroll to explore
Processes by Difficulty
Impossible
Steel Plate Rolling & Shipyard Welding
Destroyer hulls use HY‑80/HY‑100 high‑yield steel. Rolling this steel and welding it into hull sections produces massive metal fumes, requires pre‑heating, and generates tons of welding waste.
Superalloy Casting & Turbine Blade Forging
The LM2500 gas turbines use nickel superalloy turbine blades grown as single crystals at 2 500 °F. This aerospace‑grade metallurgy requires vacuum furnaces and specialized foundries.
Phased‑Array Antenna Manufacturing
The AEGIS SPY‑1 radar uses thousands of gallium‑arsenide (GaAs) transmit/receive modules. GaAs semiconductor fabrication is as complex as silicon chip manufacturing, with additional toxicity concerns.
Missile Canister Fabrication
The Mk 41 Vertical Launch System requires precision‑welded steel and aluminum canisters, composite materials for blast protection, and specialized explosive‑resistant manufacturing.
Gun Barrel Forging & Rifling
The Mk 45 5‑inch gun barrel is forged from ordnance‑grade steel, chrome‑lined internally, and precision‑rifled. Barrel forging needs enormous presses and chromium‑plating baths.
Propeller Casting & Shaft Forging
Naval propellers are cast from a nickel‑aluminum‑bronze alloy in specialized foundries. Propulsion shafts are forged from high‑strength steel. Both require foundry operations at enormous scale.
Anti‑Fouling & Radar‑Absorbing Coatings
Hull coatings include toxic anti‑fouling paint and specialized radar‑absorbing materials. Applying these at shipyard scale generates massive emissions.
Extremely Difficult
Power Generation Equipment
Ships need generators, massive copper bus bars, transformers, and switchgear— all manufactured through processes involving copper refining, transformer oil, and heavy metalwork.
RF Electronics & Antenna Fabrication
Communications equipment requires PCB etching, waveguide machining from aluminum/brass, and connector gold plating. Every antenna and radio aboard is an exercise in banned processes.
Military‑Grade Electronics
The Combat Information Center is packed with ruggedized computers, displays, and networking equipment that require conformal coating, specialized soldering, and hardened semiconductor devices.
These facilities still operate because they were established before current regulations.
If any of them closed, they could not reopen under the same permits.