Amendment in the nature of a substitute sought to provide for a 10-week moratorium on the hiring of permanent replacements for workers striking over economic issues; allow the employer to hire permanent replacements after the 10-week period had expired; require the NLRB to treat all unfair labor practice charges filed by the parties as a priority; extend from 12 to 18 months the time in which permanently replaced workers would be eligible to vote in union decertification elections; and require a secret vote before a union can call an economic strike.