Removes the exclusion of part-time employees from certain definitions relating to employment and expanding the definition of employer; removes certain exclusions for employer notice requirements for the closing of a facility; removes the discretionary reduction of penalties for employers for certain acts or omissions concerning notice requirements for mass layoffs, relocations or employment loss; removes the maximum time period for determining back pay and other liabilities for certain employees who experience employment loss; allows the attorney general to take certain action to assist certain employees in receiving back pay and other liabilities; requires employers to pay severance to employees when there is a plant closing, relocation, or mass layoff.