emission credit
noun[C,usually plural]
ENVIRONMENT(alsoemissions credit)ukus(alsopollution credit);(alsoUSemission reduction credit)areductioninpollutionthat isequalto oneemissionunit. Acompanythatreducesitspollutioncansellitsemissioncreditstocompaniesthatfailtoreducetheirpollution:
If acompanyfailstomeetitsemission-reductiontarget, it will need tobuyadditionalemissioncreditstocoveritsexcessemissions.