Those who support strict limits on greenhouse-gas pollution take issue with that, saying the act requires only that clean-air technologies be "adequately demonstrated" — a loosely defined standard that they say was deliberately devised to encourage innovation.
But others who have studied the technology argue that repeated low-dose exposure to radiation at airport checkpoints is a cumulative risk, and that the safety of the backscatter technology has not yet been adequately demonstrated by impartial research.
Industry representatives argue that such technology has not been proven on a large scale and would be extraordinarily expensive — and therefore in violation of provisions in the Clean Air Act that require the regulations to be adequately demonstrated and not exorbitant in cost.
I have not yet heard that has been adequately demonstrated as likely".
This implies that the PEC/PNEC ratio of all other compounds is known to be lower, which should be adequately demonstrated.
The applicability of laboratory tests results to predicting field leachate concentrations, loads, or rates of reaction has not been adequately demonstrated, although early flush releases and rapid sulfide oxidation rates in HCTs should have some relevance to field conditions.
The Commission initiated a public consultation on how the annexes of REACH could be amended to ensure that nanomaterials are registered more clearly under REACH and that the safe use of nanomaterials is adequately demonstrated within the registration dossiers, as part of an impact assessment in May 2013[32].
To get more television channels or better reception, they may also pay $30 per month or so for cable or satellite connections but it has not been adequately demonstrated yet that they will be equally willing to fork over an additional $40 per month for broadband.
As with the EPA's other authorities, the Clean Air Act limits what the EPA is allowed to do: any emission standards it adopts under this part of the law must not only be technically achievable but the technology must be "adequately demonstrated," "taking into consideration the cost of achieving such emission reduction, any nonair quality health and environmental impact and energy requirements".
