Answer: No, that is not true. What you may be referring to is the Blue Throated Macaw. In November of 2013 because the species was listed as 'Endangered', it became illegal in the United States to SELL Blue Throated Macaws across state lines.
In addition, states have different laws about what types of parrots are allowed to be kept as pets. Some states require special permits for different types of parrots while others have regulations about breeding and transporting birds. You may want to find out what the laws are in your state.
Finally, the only recent nationwide 'ban' was in 1992 and that banned importing parrots into the U.S. - all parrots. Since then, domestic breeding has grown exponentially.
Blue & Golds are not endangered and are one of the most popular pet parrots in the country - no bans. :)