<prompt> Translate the following text to EnglishEPA imesema kuwa imezingatia athari za uwezekano wa ushindani kwa makampuni haya na imepunguza mzigo kwa kuruhusu wastani wa uzalishaji katika safu za bidhaa, kupunguza majaribio ya mstari wa uzalishaji, kupunguza majaribio ya matumizi, utaratibu rahisi wa vyeti, na kuruhusu wazalishaji kununua mikopo ya uzalishaji kutoka soko kama mbadala wa kutumia teknolojia za udhibiti ili kukidhi kiwango.  <response>: EPA states that it has taken into consideration the potential competitive impact on these firms and has eased the burden by permitting averaging emissions across product lines, reduced production line testing, reduced in-use testing, simplified certification procedures and allowing manufacturers to purchase emission credits from the market place as an alternative to employing control technologies to meet the standard. 