The delay in ACE implementation is in response to the trade community's concerns about the feasibility of meeting the deadline. One of the main reasons importers, customs brokers, and software providers have been struggling is that even as the date drew nearer, CBP continued to update ACE technical specifications and features, said Elizabeth Connell, vice president of product management and the lead on ACE development and integration for Integration Point, a provider of trade compliance software. Those changes included a major change affecting users of foreign trade zones on Jan. 15, just six weeks before the deadline.