A sign reads 'HOV 2+ 7AM-9AM, 4PM-6PM.' What does this mean?

HOV LANES (High Occupancy Vehicle): Reserved for vehicles with 2+ (or 3+ in some areas) occupants during peak congestion hours. RULES: During posted hours: only vehicles with minimum occupancy requirement may use the lane; Single-occupant vehicles in an HOV lane during restricted hours = traffic violation (fine varies by state, often $100-$300); HOV OCCUPANTS: Counting rules — vehicle operator plus passengers; in most states, infants and children count; solo drivers with disabilities may have exemptions (check state rules); Electric vehicles may qualify for HOV in some states even with a single occupant; OFF-PEAK: When signs don't show restrictions, all vehicles may use the lane; IDENTIFICATION: HOV lanes typically separated by double white lines that may not be crossed except at designated entry points; diamond symbol painted on pavement; PURPOSE: Reduce congestion by incentivising carpooling; HOV lanes often move significantly faster than general travel lanes during peak hours.