Across more than two centuries of farming, ranching, and food processing, April 28 has repeatedly intersected with milestones that shaped how Americans grow, harvest, and deliver food. From worker safety reforms to pandemic-era directives that kept protein moving through grocery cases, the date carries a throughline of resilience, risk, and reform in U.S. agriculture.

1971: A turning point for farmworker safety and the birth of Workers’ Memorial Day

On April 28, 1971, the Occupational Safety and Health Administration (OSHA) opened its doors to enforce the Occupational Safety and Health Act of 1970. The date has since been observed annually as Workers’ Memorial Day, a moment of remembrance for people who have died or been injured on the job—and a reminder that agriculture remains among the nation’s most hazardous industries.

OSHA’s creation elevated attention to risks long familiar in farm country: tractor rollovers, machinery entanglements, confined-space hazards in grain bins, chemical exposure, and heat stress. Over time, a mosaic of protections emerged. OSHA standards address issues such as rollover protective structures (ROPS) and guarding on powered equipment. Complementary rules from other agencies also took shape, including the Environmental Protection Agency’s Worker Protection Standard for agricultural pesticides, which governs training, notification, and restricted-entry intervals for handlers and fieldworkers.

Yet the policy landscape for agriculture has always been distinct. Small farms with 10 or fewer employees are generally exempt from OSHA enforcement, and many family operations rely on voluntary programs, insurer incentives, extension education, and equipment retrofits to reduce risk. The legacy of April 28 is thus twofold: it institutionalized a safety mission that reaches into every packing shed and barn, and it underscores the ongoing work to translate that mission into universal practice in a sector with diverse workplaces and labor arrangements.

2020: Keeping meat and poultry plants running during COVID-19

On April 28, 2020, as COVID-19 outbreaks disrupted labor at slaughter and processing plants, the White House issued an executive order under the Defense Production Act directing the U.S. Department of Agriculture to help ensure continued operations at meat and poultry facilities consistent with public health guidance. The move responded to cascading closures and slowdowns that had strained livestock backlogs on farms, thinned product on retail shelves, and rattled consumer confidence.

The order put USDA at the center of a delicate balancing act: coordinating with companies, state and local officials, and federal health agencies to keep plants open while implementing infection-control protocols. Processors reconfigured workstations, added physical barriers, installed ventilation upgrades, and expanded on-site health screenings. For growers and feeders, the directive—coupled with subsequent adjustments in staffing, line speeds, and market channels—was pivotal to stabilizing cash flows and averting deeper animal welfare and disposal crises.

That late-April decision now reads as a case study in supply-chain risk management: a reminder that “agriculture” includes the human-intensive systems that convert animals and crops into food, and that continuity plans must account for both biology and public health.

2011: Day four of the Super Outbreak and the toll on Southern farms

April 28, 2011 marked the final day of the historic “Super Outbreak” of tornadoes across the Southeast. While the deadliest storms struck on April 27, additional tornadoes and severe weather continued into April 28, compounding losses for rural communities. Poultry houses—ubiquitous across Alabama, Mississippi, and Georgia—sustained widespread damage or destruction. Barns, fences, irrigation systems, and early-season crops were also hit, and power outages disrupted milking and ventilation systems critical to animal health.

In the weeks that followed, producers navigated insurance claims, federal disaster programs, and the logistics of rebuilding specialized structures. The episode accelerated conversations about hardening farm structures, diversifying power sources, and improving emergency communications—threads of preparedness that continue to influence how operations plan for severe weather.

2015: Avian influenza detections crest in the Upper Midwest

Late April 2015— including April 28—saw a rapid cadence of confirmed detections of highly pathogenic avian influenza (HPAI) in commercial turkey and egg-layer operations in Iowa, Minnesota, and neighboring states. Federal and state animal health teams expanded quarantine zones, depopulated affected flocks, and intensified biosecurity protocols to slow spread. By early summer, the United States had lost tens of millions of birds, reshaping egg supplies and turkey markets and prompting significant investments in on-farm biosecurity, waterfowl deterrence, and emergency response capacity.

The late-April surge became a reference point for how quickly animal disease can move through dense production regions, and how crucial coordinated surveillance, rapid diagnostics, and farm-level hygiene are to protecting the protein supply.

The rhythm of the farm year: what late April usually means on the ground

Beyond singular milestones, April 28 falls at a pivotal moment in the production calendar:

  • Row crops: In much of the Corn Belt, late April often marks a decisive planting window for corn, with soybean planting accelerating as soils warm and dry. Weather in this week can swing national “crop progress” figures and influence input logistics.
  • Wheat and small grains: Winter wheat moves through jointing and heading in southern latitudes, making disease scouting and timely fungicide decisions critical when conditions favor rusts or scab.
  • Specialty crops: Early harvests of leafy greens in the Southwest give way to plantings in the northern states; fruit growers monitor frost risk, pollination progress, and pest emergence models.
  • Livestock: Pasture turnout begins in many regions, heightening the importance of forage assessment, parasite control, and rotational plans to protect stand health.

Each of these seasonal steps carries echoes of the dates above: safety in the shop and field, contingency plans for labor and logistics, and biosecurity and animal health protocols that guard against the unexpected.

Why April 28 still matters

Read together, the events tied to April 28 trace a consistent arc. Worker protections established in 1971 continue to evolve as farms adopt new technology and as climate variability elevates heat and storm risks. Emergency directives during the 2020 pandemic highlighted the human backbone of the food system and the need for resilient processing infrastructure. Severe weather and animal disease outbreaks underscore that preparedness is not a one-time investment but a culture.

For producers, processors, and consumers alike, the date serves as a yearly reminder: the safety of people, the health of animals and crops, and the continuity of markets are inseparable. Keeping them aligned is the quiet, everyday work that sustains American agriculture—on April 28 and every day that follows.