爱荷华州长延长秋收超重卡车豁免至11月7日，最高9万磅免许可
爱荷华州州长 Kim Reynolds 签署公告，将运输谷物、化肥和粪肥车辆的重量限制豁免延长至2026年11月7日。据州长办公室消息，此次延长是对9月10日生效、原定10月10日到期的豁免政策的延续。
据 KCRG 报道，新公告允许运输玉米、大豆、干草、秸秆、青贮饲料、玉米秸、化肥和粪肥的车辆在无许可情况下超重行驶，适用于爱荷华州内除州际公路系统外的所有公路。化肥包括干态、液态和气态，粪肥包括干态和液态。豁免期间，车辆总重最高可达9万磅。
豁免附带多项限制条件：车辆总重不得超过9万磅；单轴重量不得超过爱荷华州法典第321.463(6)(a)-(b)条非主要公路最大总重表规定上限的12.5%；法定单轴2万磅上限仍然适用；运输者必须遵守所有道路和桥梁上公布的限重。
Reynolds 州长此前于9月10日签署了最初的豁免公告。随着秋收进入关键期，州政府表示，严格执行常规许可和重量要求可能妨碍这一时间敏感的农事活动，因此延长豁免以提供额外灵活性。爱荷华州公共安全部已受命监督该公告的执行情况。
值得注意的是，这项超重豁免与爱荷华州另一项染色柴油豁免是相互独立的政策。据 Brownfield Ag News 报道，Reynolds 州长10月6日还签署了一项公告，暂时中止对使用染色柴油运输特定农产品车辆的州处罚，以降低农民燃油成本，该政策持续至2027年2月2日。爱荷华州也加入了密苏里、内布拉斯加等邻州的行列出台类似减免。
秋收期间，爱荷华州农用卡车交通量大幅增加。州政府提醒普通驾驶员：收获季意味着路上有更多农机具和农用卡车，其中一些可能载重超过平常水平，行车时请保持车距、耐心超车，并注意乡村道路、路口和田间出入口的交通安全。
Iowa Governor Extends Harvest Overweight Truck Exemption Through Nov. 7, Up to 90,000 Pounds Without Permit
Iowa Gov. Kim Reynolds has signed a proclamation extending weight-limit exemptions for vehicles transporting grain, fertilizer and manure through Nov. 7, 2026, according to the governor's office. The extension continues a proclamation that took effect Sept. 10 and was originally set to expire Oct. 10.
According to KCRG, the proclamation allows vehicles hauling corn, soybeans, hay, straw, silage, stover, fertilizer and manure to operate overweight without a permit on all highways within Iowa, excluding the interstate system. Fertilizer covered includes dry, liquid and gas forms; manure covered includes dry and liquid forms. Vehicles may weigh up to 90,000 pounds gross while the proclamation is in effect.
Several conditions apply: loads cannot exceed 90,000 pounds gross weight; axle weights cannot exceed the maximum set by the non-primary highway maximum gross weight table in Iowa Code Section 321.463(6)(a)-(b) by more than 12.5 percent; the legal maximum axle weight of 20,000 pounds still applies; and haulers must comply with posted limits on all roads and bridges.
Reynolds signed the original exemption proclamation on Sept. 10. With harvest entering a critical phase, the state said strict compliance with normal permit and weight requirements could hinder the time-sensitive work, hence the extension for added flexibility. The Iowa Department of Public Safety has been directed to monitor the proclamation's implementation.
Notably, the overweight exemption is separate from another Iowa diesel relief measure. According to Brownfield Ag News, Reynolds signed a proclamation on Oct. 6 temporarily suspending state penalties for vehicles using dyed diesel to transport certain agricultural products on public roads, aimed at lowering fuel costs for farmers; that policy runs through Feb. 2, 2027. Iowa joins neighboring states including Missouri and Nebraska in issuing such waivers.
During harvest, agricultural truck traffic increases sharply across Iowa. The state reminds motorists: harvest means more farm equipment and farm trucks on the road, some carrying heavier loads than usual — give them plenty of space, be patient when passing, and watch for traffic at intersections, rural roads and field entrances.
图片来源：图：爱荷华州蒙哥马利县玉米收获，联合收割机向拖车卸粮。摄影：Tim McCabe，美国农业部自然资源保护局官方照片，公有领域，来源：Wikimedia Commons
