Dozens of drivers who deliver packages for Amazon.com Inc. AMZN ratified a contract Friday that promises pay raises and safety protections, the Teamsters said. Among other things, the contract will bring wages for the Palmdale, Calif.-based drivers and dispatchers to $30 an hour by September, the union said. But it is unclear how long those new increases and benefits will last. MarketWatch reported earlier this week that the drivers had reached a tentative agreement with their direct employer, Battle Tested Strategies, an Amazon delivery service partner. But Amazon told MarketWatch that the company had terminated Battle…








