[US 401(k) Rule Proposal Does Not Limit Cryptocurrency Types, Alternative Coins Still Face Obstacles to Retirement Plan Inclusion] Odaily Planet Daily reports that the US Department of Labor's proposed rule allowing 401(k) retirement plans to allocate alternative assets such as cryptocurrencies was submitted to the White House Office of Management and Budget (OMB) for final review on Thursday. The proposal aims to simplify the process of allocating alternative investments to retirement plans and provide some legal protection for employers and plan managers. The proposal released by the Department of Labor in March did not limit the types of digital assets that could be included, nor did it set a minimum market capitalization threshold, but it required plan managers to assess investment risks from six aspects: performance, fees, liquidity, valuation, benchmarks, and complexity. Teresa Goody Guillén, Managing Partner of Bellementis PLLC, stated that Bitcoin and Ethereum may be the first to be adopted due to their more mature markets and investment products, but altcoins are not automatically excluded and still need to meet requirements such as prudent investment, liquidity, valuation, and investor protection. Bernardo Brites, co-founder and CEO of Trace Finance, pointed out that some small-cap tokens may find it difficult to meet the requirements for historical performance and benchmark assessment. Furthermore, the proposal does not require crypto investments to be made through ETFs or managed funds, but Guillén anticipates that such investment products may precede direct holdings of cryptocurrencies in 401(k) retirement plans.