WRONG, part15 covers EVERYTHING that emits a signal, unlicensed radio, receivers, computers, ipod's, microwaves. Practically everything electronic is controlled by the FCC. Part 15 is required to manufacture and import electronic items into the US.
My bad, I obviously misread the law.
Section 15.1 Scope of this Part.
(a) This Part sets out the regulations under which an intentional, unintentional, or incidental radiator may be operated without an individual license. It also contains the technical specifications, administrative requirements and other conditions relating to the marketing of Part 15 devices.
(b) The operation of an intentional or unintentional radiator that is not in accordance with the regulations in this Part must be licensed pursuant to the provisions of Section 301 of the Communications Act of 1934, as amended, unless otherwise exempted from the licensing requirements elsewhere in this Chapter.
(c) Unless specifically exempted, the operation or marketing of an intentional or unintentional radiator that is not in compliance with the administrative and technical provisions in this Part, including prior Commission authorization or verification, as appropriate, is prohibited under Section 302 of the Communications Act of 1934, as amended, and Subpart I of Part 2 of this Chapter. The equipment authorization and verification procedures are detailed in Subpart J of Part 2 of this Chapter.
Don't believe, does the ARRL hold any weight with you?
http://www.arrl.org/tis/info/part15.html
Overview
Hams are very familiar with Part 97 of Title 47 of the Code of Federal Regulations. These are the rules that govern ham radio. There are other Parts in Title 47 that govern other radio services. Part 15 of Title 47 of the Code of Federal Regulations is important to amateurs because it regulates low power, unlicensed devices that could cause interference to the Amateur Radio Service and vice versa. Part 15 covers an assortment of electronic equipment that generates RF energy whether it's intentional, unintentional or incidental. Amateurs will need to consider Part 15 as it relates to digital devices, computers, low-powered, unlicensed transmitters, electrical devices and any other "generic" device that might generate RF in the normal course of its operation.
What is overheard on the air, or on Internet newsgroups and discussion forums is any indication, hams don't understand much about Part 15. There are a lot of "urban myths" that tend to confuse an already-confusing topic. These web pages explain the sections of Part 15 that are especially important to amateurs.
Myths About Part 15
There are a lot of urban myths about Part 15 rules and devices. The first is that their signal levels are very small and it is not likely that they will cause harmful interference. Although this is true in most cases, the radiated emissions levels in Part 15 were designed to protect one neighbor's television reception from another neighbor's video game, as an example. The permitted radiation levels are not enough to always protect sensitive amateur reception. As one example, intentional radiators and carrier-current devices are permitted a field strength of 30 microvolts/meter at 30 meters distance from the source. On HF, this legal signal, if heard on an 80 meter half-wave dipole, would result in a received signal of S9+15 dB on most receiver S meters! This clearly would be harmful interference in the Amateur Radio Service.
Many hams believe that all devices regulated by Part 15, including transmitters and digital devices, are "type accepted" by the FCC, with testing in the FCC Lab. Type acceptance has actually been written out of the FCC rules. Devices that were Type Accepted under the old rules are now subject to Certification or a Declaration of Conformity. To obtain Certification, a manufacturer supplies test data to the FCC, usually from a laboratory that the FCC knows and trusts, and Certification is usually issued on the basis of the test data and other information about the product. In a Declaration of Conformity, the manufacturer issues a formal statement to the FCC that the device has been tested at an accredited laboratory and that it complies with the rules.
Although the FCC can call in equipment for testing, in almost all cases, the FCC does not actually perform testing on equipment covered by Part 15. They usually review information and test data supplied by the manufacturer. Most computing devices are subject to Certification or a Declaration of Conformity.
Any other service that requires a license is regulated under the rules of that service. You violate Part 97, Section 300 if your rig causes interference during it's intended use. The device I suppose could violate Part 15 if it creates unintended interference otherwise, say due to its microprocessor. If your neighbor's TV goes wacky because of your ham rig when you key up, then the FCC will ask for compliance to Part 97, not Part 15, for your radio. The TV's reciever section must meet Part 15 for rejection of out-of-band EMI, though, too. So if you are operating within your authority and your equipment is up to spec, then it's perfectly legitimate to expect the TV to also meet it's CFR requirements for selectivity and rejection.
Your equipment must either be self tested (i.e you are personally certifying the rig under your operating authority) or carry a certificate of conformity related to the Part and Section under which you are licensed. Some of these Chinese radios DO carry certificates of conformity from FCC-approved labs for compliance and so broad generalizations of their illegality are not fair.
However, correct me if I'm wrong, in this case it looks like Puxing is tested for private radio services, i.e. Part 90. It was issued back in August of 2006.
You can check it yourself.
https://fjallfoss.fcc.gov/oetcf/eas/
Puxing's FRN: 0015138381
Puxing's Comliance Application: 614419
Puxing's FCC ID: UBY
PX-777 Product Code: QZPUXING02
TCB was Bay Area Compliance Labs and TCB scope was GMRS and Broadcast Services equipment in the following 47 CFR Parts 22 (non-cellular) 73, 74, 90, 95 and 97.