<prompt> Translate the following text to EnglishItachukua miaka miwili au miwili kuongeza kiwanda, na hii itafanywa tu baada ya kanuni kuweka mahali, faida za kiufundi za ACI kwa kuondoa zebaki zilithibitishwa ikilinganishwa na mbinu nyingine, na muda wazi wa kufuata ulipewa amri.  <response>: It would take 2-3 years to add a plant; and this would only be done after a regulation was put in place, the technical advantages of ACI for mercury removal were proven relative to other approaches, and a clear time-line for compliance was mandated. 