As we head into a summer weekend, it is time for our weekly roundup of government contracting news and commentary.  This week brings news on size standards, procurement spending, proposed rules and missing guidelines.

• Congress is mulling new ways for businesses to dispute SBA size standards, including letting firms challenge the agency through an administrative process. [Federal News Radio]
• The government’s top procurement official issued guidance last week that reminds acquisition officers to be careful when deciding to use reverse auctions for procurement projects. [FierceGovernment]
• The DOD spends more money on services than it does on procuring weapons and equipment, and some think that needs to change. [FierceGovernment]
• The FAR Council has proposed FAR amendments to reflect regulatory changes made by the SBA which provide for a government wide policy on small business subcontracting. [Federal Register]
• The National Nuclear Security Administration never set up guidelines for how to use the information it gets from auditing contractor performance–and according to the GAO, that means that the NNSA may not be evaluating contractors properly. [FierceGovernment]
• Guy Timberlake breaks out his crystal ball, and predicts that the $500K proposal to increase simplified acquisition threshold is “doomed.” [GovConChannel]
• Federal Computer Week offers some insightful commentary on the recent OFPP reverse auctions memo. [Federal Computer Week]