Here. Is there any other country that enacts such statements?
See Prof. Froomkin's opinion here ("US plans to keep control of the root indefinitely"). International press review by Patrick Jones here.
The United States Government intends to preserve the security and stability of the Internet’s Domain Name and Addressing System (DNS). Given the Internet's importance to the world’s economy, it is essential that the underlying DNS of the Internet remain stable and secure. As such, the United States is committed to taking no action that would have the potential to adversely impact the effective and efficient operation of the DNS and will therefore maintain its historic role in authorizing changes or modifications to the authoritative root zone file.
Governments have legitimate interest in the management of their country code top level domains (ccTLD). The United States recognizes that governments have legitimate public policy and sovereignty concerns with respect to the management of their ccTLD. As such, the United States is committed to working with the international community to address these concerns, bearing in mind the fundamental need to ensure stability and security of the Internet’s DNS.
ICANN is the appropriate technical manager of the Internet DNS. The United States continues to support the ongoing work of ICANN as the technical manager of the DNS and related technical operations and recognizes the progress it has made to date. The United States will continue to provide oversight so that ICANN maintains its focus and meets its core technical mission.
Dialogue related to Internet governance should continue in relevant multiple fora. Given the breadth of topics potentially encompassed under the rubric of Internet governance there is no one venue to appropriately address the subject in its entirety. While the United States recognizes that the current Internet system is working, we encourage an ongoing dialogue with all stakeholders around the world in the various fora as a way to facilitate discussion and to advance our shared interest in the ongoing robustness and dynamism of the Internet. In these fora, the United States will continue to support market-based approaches and private sector leadership in Internet development broadly.