This would account for 750,000 vehicles in New Zealand.
The corporation is seeking public input on its proposals before making its final recommendations to the Government which has the final say.
The proposed cuts would save employers, workers and motorists $562 million a year but ACC Minister Judith Collins has already said the Government plans more modest cuts of about $300 million.
She said ACC's proposals to cut levies were not an indication they were set too high, but "a sign of some really good work at ACC bringing down the liabilities".
Recommendations
* Reduce the Work levy by 17% from $1.15 to $0.95 for every $100 of liable earnings: annual saving $152m or $109 for someone on the average wage.
* Reduce the Earners' levy by 15%, from $1.48 to $1.26 per $100 of liable earnings: annual saving $236m.
* Reduce the average Motor Vehicle levy by 15% or from $330.68 to $280: annual saving $173m or $50 for the average motorist.
- additional reporting: Teuila Fuatai of APNZ