Jan 15 : The California Public Utilities Commission on Thursday approved Verizon Communications' $20 billion deal to acquire fiber-optic internet providers Frontier Communications , clearing the way for the deal to close on Tuesday after Verizon agreed to a series of conditions. California state regulators said Verizon committed to investing in 75,000 new fiber locations and building 25 new wireless towers to expand service in rural areas in the state. The company also agreed to additional