National League clubs have decided to fall in line with their Super League counterparts by introducing a salary cap.
The cap, which will come into effect from next season, will limit expenditure on players' wages to �150,000 for National League One clubs and �100,000 for National League Two clubs, but no more than 50% of income.
Clubs will be able to apply for exemptions in special cases and that will almost certainly apply to relegated Super League clubs keen to retain a full-time playing staff.
RFL financial director Nigel Wood said: "While it is clear that excess spending amongst National League clubs is not quite the problem it was some years ago, there was still a unanimous view that clubs must be regulated and disciplined to live within their means."
Super League clubs are limited to spending �1.8m on players' salaries.
The penalties for breaching the regulations agreed by the National League clubs include such potential punishments as point deductions, automatic relegation or the denial of promotion and fines.