The phrase "allowed to emit" is correct and usable in written English.
It can be used in contexts discussing permissions or regulations regarding the release of substances, such as gases or pollutants.
Example: "Under the new environmental regulations, factories are only allowed to emit a certain amount of carbon dioxide each year."
Alternatives: "permitted to release" or "authorized to discharge".
The government issues permits or carbon allowances to industries for the amount of greenhouse gases they are allowed to emit, then gradually reduces the cap and the number of permits, providing a financial incentive for those companies to pollute less.
They are also allowed to emit up to five and a half times as much smog-causing gases as cars.
Carriers will be allowed to emit 85 percent of their designated cap for free for the first year.
Coal-fired plants, meanwhile, may be allowed to emit as many as 1,400 pounds per megawatt-hour.
The inert porous medium, used in the flow passage of combustion gas, is allowed to emit and absorb radiant energy.
On January 1 2005, the EU put a cap on how much carbon companies are allowed to emit.
The second cavity designed allows to emit long 150 ns pulses exceeding a few millijoules per pulse.
As the New York Times notes, the EPA's announcement itself estimates that 1,400 more Americans may die annually because of the increased number of particulates allowed to be emitted from power plants.
The microspheres are mixed with purified nucleic acids of the test organism and allowed to hybridize, emitting monochromatic light, which the Luminex analyzer reads and interprets.
2D-periodic pattern allowed to manipulate light emitted from the SiNCs due to the overlap of their emission spectrum with the leaky modes of the structure.
Under RGGI, 10 Northeastern and mid-Atlantic states ranging from Maine to Maryland set a ceiling on carbon dioxide emissions and require power plants to purchase credits or allowances that allow them to emit specified amounts of carbon dioxide.
